Standard Lemma guide

reef

adj · name · noun · verb · 18 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • rēf
  • /ɹiːf/
  • US: Recorded audio is listed in the source snapshot.
  • Australia: Recorded audio is listed in the source snapshot.
  • rhymes with -iːf
  • CMU ARPABET: R IY1 F Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Scabby; scurvy.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

name

Meaning 2

A surname from German.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A chain or range of rocks, sand, or coral lying at or near the surface of the water.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A large vein of auriferous quartz; hence, any body of rock yielding valuable ore.

Definition source: English Wiktionary via Wiktextract

Usage: Australia, South-Africa

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

A portion of a sail rolled and tied down to lessen the area exposed in a high wind.

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

A reef knot.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

noun

Meaning 7

The itch; any eruptive skin disorder.

Definition source: English Wiktionary via Wiktextract

Qualifier: Now chiefly dialectal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

8

noun

Meaning 8

Dandruff.

Definition source: English Wiktionary via Wiktextract

Qualifier: Now chiefly dialectal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

9

verb

Meaning 9

To take in part of a sail in order to adapt the size of the sail to the force of the wind.

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

Examples

  • 1970 July–December, Margaret Quilty, Roller Reefing Made Easy, Boating, page 63, Be sure the blocks are securely mounted—they carry a fairish load when the sail is reefed. If both reefing line and main halyard are led to the cockpit, even singlehanded reefing is a breeze.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

10

verb

Meaning 10

To pull or yank strongly, especially in relation to horse riding.

Definition source: English Wiktionary via Wiktextract

Usage: Australia

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

11

verb

Meaning 11

To move the floats of a paddle wheel toward its center so that they will not dip so deeply.

Definition source: English Wiktionary via Wiktextract

Topics: nautical, transport

Examples

  • Reef the paddles.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

12

verb

Meaning 12

To manipulate the lining of a person's pocket in order to steal the contents unnoticed.

Definition source: English Wiktionary via Wiktextract

Usage: slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

13

noun

Meaning 13

one of several strips across a sail that can be taken in or rolled up to lessen the area of the sail that is exposed to the wind

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: strip, slip

14

noun

Meaning 14

a rocky region in the southern Transvaal in northeastern South Africa; contains rich gold deposits and coal and manganese

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: Witwatersrand, Rand

Antonyms: none provided

Broader terms: region, part

15

noun

Meaning 15

a submerged ridge of rock or coral near the surface of the water

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: ridge

Narrower terms: coral reef

16

verb

Meaning 16

reduce (a sail) by taking in a reef

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: shrink, reduce

17

verb

Meaning 17

roll up (a portion of a sail) in order to reduce its area

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: roll up, furl

18

verb

Meaning 18

lower and bring partially inboard

Definition source: Princeton WordNet 3.0

Examples

  • reef the sailboat's mast

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: lower, take down, let down, get down, bring down

History

Etymology

From Middle English ref, hreof, from Old English hrēof (“rough, scabby, leprous", also "a leper”), from Proto-Germanic *hreubaz (“rough, scabby, scrubby”), from Proto-Indo-European *kreup- (“scab, crust”), related to Old English hrēofla (“leprosy, leper”). Cognate with Scots reif (“a skin disease leaving crusts on the skin, the scab”), Old High German riob (“leprous, scabby, mangy”), Icelandic hrjúfur (“scabby, rough”). Compare riffe, dandruff.

Borrowed from North German Reef, possibly related to Reep (“rope”), or otherwise from obsolete rif (“body”) (from Proto-West Germanic *hrif).

From earlier riff, from Middle English rif, from Old Norse rif (“rib, reef”), from Proto-Germanic *ribją (“rib, reef”), from Proto-Indo-European *h1rebh- (“arch, ceiling, cover”). Dutch rif (“reef”), Low German riff, reff (“reef”), German Riff (“reef, ledge”) are also borrowed from Old Norse. Doublet of rib.

From Middle English reef, from Old Norse rif, Middle Dutch rif, rēve, and/or Middle Low German ref. Possibly a figurative use of the word for “rib” in etymology 1 above, in which case all forms must, again, be borrowings from Old Norse. Alternatively it may be a different word related to Old English rift (“curtain, veil”), ārāfian (“to uncoil, wind off”).

Across languages

Translations

129 source translations are retained for this English entry.

  • Afrikaans: rif — rocks at or near surface of the water
  • Aleut: yas — rocks at or near surface of the water
  • Arabic: شَعَاب (šaʕāb) — rocks at or near surface of the water
  • Armenian: խութ (xutʻ) — rocks at or near surface of the water
  • Belarusian: рыф (ryf) — rocks at or near surface of the water
  • Bulgarian: риф (rif) — rocks at or near surface of the water
  • Burmese: ကျောက်တန်း (kyauktan:) — rocks at or near surface of the water
  • Catalan: escull — rocks at or near surface of the water
  • Chinese Mandarin: 礁 (jiāo) — rocks at or near surface of the water
  • Chinese Mandarin: 暗礁 (ànjiāo) — rocks at or near surface of the water
  • Czech: útes — rocks at or near surface of the water
  • Dutch: rif — rocks at or near surface of the water
  • Esperanto: rifo — rocks at or near surface of the water
  • Estonian: riff — rocks at or near surface of the water
  • Fijian: cakau — rocks at or near surface of the water
  • Finnish: riutta — rocks at or near surface of the water
  • Finnish: karikko — rocks at or near surface of the water
  • Finnish: särkkä — rocks at or near surface of the water
  • French: écueil — rocks at or near surface of the water
  • French: récif — rocks at or near surface of the water
  • Galician: recife — rocks at or near surface of the water
  • Galician: sirte — rocks at or near surface of the water
  • Galician: pedrido — rocks at or near surface of the water
  • Galician: restinga — rocks at or near surface of the water
  • Galician: cón — rocks at or near surface of the water
  • Galician: farallón — rocks at or near surface of the water
  • Galician: bortoa — rocks at or near surface of the water
  • Galician: brica — rocks at or near surface of the water
  • Galician: camouco — rocks at or near surface of the water
  • Georgian: რიფი (ripi) — rocks at or near surface of the water
  • German: Riff — rocks at or near surface of the water
  • German: Felsenriff — rocks at or near surface of the water
  • Greek: ύφαλος (ýfalos) — rocks at or near surface of the water
  • Greek: ξέρα (xéra) — rocks at or near surface of the water
  • Greek: ξέρη (xéri) — rocks at or near surface of the water
  • Greek: σκόπελος (skópelos) — rocks at or near surface of the water
  • Ancient Greek: σπιλάς (spilás) — rocks at or near surface of the water
  • Ancient Greek: σπίλος (spílos) — rocks at or near surface of the water
  • Ancient Greek: ἕρμα (hérma) — rocks at or near surface of the water
  • Hebrew: שׁוּנִית — rocks at or near surface of the water
  • Hungarian: zátony — rocks at or near surface of the water
  • Icelandic: rif — rocks at or near surface of the water
  • Indonesian: terumbu — rocks at or near surface of the water
  • Irish: scoth — rocks at or near surface of the water
  • Irish: scairbh — rocks at or near surface of the water
  • Italian: scogliera — rocks at or near surface of the water
  • Italian: barriera — rocks at or near surface of the water
  • Japanese: 礁 (shō) — rocks at or near surface of the water
  • Japanese: 暗礁 (anshō) — rocks at or near surface of the water
  • Kazakh: кедертас (kedertas) — rocks at or near surface of the water
  • Khmer: ថ្មប៉ប្រះទឹក (tmɑɑ pɑprah tɨk) — rocks at or near surface of the water
  • Korean: 암초 (amcho) — rocks at or near surface of the water
  • Korean: 초 (cho) — rocks at or near surface of the water
  • Macedonian: гребен (greben) — rocks at or near surface of the water
  • Malay: terumbu — rocks at or near surface of the water
  • Māori: ākau — rocks at or near surface of the water
  • Māori: pūkawa — rocks at or near surface of the water
  • Māori: tau — rocks at or near surface of the water
  • Persian: آبسنگ (âbsang) — rocks at or near surface of the water
  • Polish: rafa — rocks at or near surface of the water
  • Portuguese: recife — rocks at or near surface of the water
  • Portuguese: arrecife — rocks at or near surface of the water
  • Portuguese: restinga — rocks at or near surface of the water
  • Réunion Creole French: résif — rocks at or near surface of the water
  • Romanian: recif — rocks at or near surface of the water
  • Russian: риф (rif) — rocks at or near surface of the water
  • Serbo-Croatian: greben — rocks at or near surface of the water
  • Serbo-Croatian: гребен — rocks at or near surface of the water
  • Slovak: útes — rocks at or near surface of the water
  • Slovene: grebén — rocks at or near surface of the water
  • Spanish: arrecife — rocks at or near surface of the water
  • Swedish: rev — rocks at or near surface of the water
  • Tahitian: aʻau — rocks at or near surface of the water
  • Thai: โขดหิน (kòht hĭn) — rocks at or near surface of the water
  • Turkish: resif — rocks at or near surface of the water
  • Ottoman Turkish: قیا (kaya) — rocks at or near surface of the water
  • Ukrainian: риф (ryf) — rocks at or near surface of the water
  • Vietnamese: đá ngầm — rocks at or near surface of the water
  • Vietnamese: ám tiêu — rocks at or near surface of the water
  • Volapük: kliped — rocks at or near surface of the water
  • Volapük: klifakliped — rocks at or near surface of the water
  • Welsh: creigres — rocks at or near surface of the water
  • Welsh: rîff — rocks at or near surface of the water
  • Afrikaans: rif — large vein of auriferous quartz
  • Bulgarian: златоносна жила (zlatonosna žila) — large vein of auriferous quartz
  • Czech: zlatá žíla — large vein of auriferous quartz
  • French: filon — large vein of auriferous quartz
  • Galician: vieiro — large vein of auriferous quartz
  • Galician: vea — large vein of auriferous quartz
  • Galician: filón — large vein of auriferous quartz
  • Hungarian: ér — large vein of auriferous quartz
  • Hungarian: aranyér — large vein of auriferous quartz
  • Italian: filone — large vein of auriferous quartz
  • Portuguese: filão — large vein of auriferous quartz
  • Spanish: filón — large vein of auriferous quartz
  • Afrikaans: rif — arrangement to reduce the area of a sail
  • Bulgarian: риф (rif) — arrangement to reduce the area of a sail
  • Catalan: ris — arrangement to reduce the area of a sail
  • Dutch: rif — arrangement to reduce the area of a sail
  • Finnish: reivi — arrangement to reduce the area of a sail
  • French: ris — arrangement to reduce the area of a sail
  • Galician: rizo — arrangement to reduce the area of a sail
  • Italian: terzarolo — arrangement to reduce the area of a sail
  • Japanese: 縮帆 (shukuho) — arrangement to reduce the area of a sail
  • Māori: rīwhi — arrangement to reduce the area of a sail
  • Norman: ris — arrangement to reduce the area of a sail
  • Norman: ris d'vaile — arrangement to reduce the area of a sail
  • Norman: barre — arrangement to reduce the area of a sail
  • Russian: риф (rif) — arrangement to reduce the area of a sail
  • Scottish Gaelic: riof — arrangement to reduce the area of a sail
  • Bulgarian: зарифявам (zarifjavam) — sailing
  • Catalan: rissar — sailing
  • Czech: podkasat plachtu — sailing
  • Dutch: reffen — sailing
  • Finnish: reivata — sailing
  • French: prendre un ris — sailing
  • French: arriser — sailing
  • German: reffen — sailing
  • Ido: refagar — sailing
  • Italian: terzarolare — sailing
  • Māori: rīwhi — sailing
  • Norman: arrîsi — sailing
  • Norman: rîsi — sailing
  • Norwegian: reve — sailing
  • Polish: refować — sailing
  • Scottish Gaelic: riof — sailing
  • Spanish: tomar rizos — sailing
  • Swedish: reva — sailing
  • Volapük: refön — sailing