Standard Lemma guide

one-way

adj · noun · verb · 6 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.

  • /wʌn.weɪ/
  • wŭnʹwāʹ
  • Southern-England: Recorded audio is listed in the source snapshot.
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: W AH1 N W EY1 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Allowing movement, vision, etc. in only one direction; unidirectional.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • one-way mirror
  • The town centre is now a system of one-way streets.

Meaning relationships

Synonyms: none provided

Antonyms: two-way, bidirectional

2

adj

Meaning 2

Allowing travel in only one direction.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Examples

  • I bought a one-way ticket to Leeds.

Meaning relationships

Synonyms: none provided

Antonyms: round-trip, return

3

adj

Meaning 3

Of a function: easy to compute for every input, but hard to invert given the image of a random input.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

Topics: computer, computing, engineering, mathematics, natural-sciences, physical-sciences, science, sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A one-way trip or flight.

Definition source: English Wiktionary via Wiktextract

Usage: uncommon

Topics: lifestyle, tourism, transport, travel

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To use a disc harrow to turn the soil and kill weeds, in preparation for planting seeds.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Topics: agriculture, business, lifestyle

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adjective satellite

Meaning 6

moving or permitting movement in one direction only

Definition source: Princeton WordNet 3.0

Examples

  • one-way streets
  • a one-way ticket

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From one + way. First attested in 1906 in reference to one-way tickets; 1914 in reference to one-way streets; 1940 in reference to one-way mirrors.

Across languages

Translations

40 source translations are retained for this English entry.

  • Albanian: njëdrejtimësh — allowing movement in only one direction
  • Bulgarian: еднопосочен (ednoposočen) — allowing movement in only one direction
  • Chinese Mandarin: 單向 /单向 (dānxiàng) — allowing movement in only one direction
  • Czech: jednosměrný — allowing movement in only one direction
  • Finnish: yksisuuntainen — allowing movement in only one direction
  • French: à sens unique — allowing movement in only one direction
  • German: Einweg- — allowing movement in only one direction
  • German: Einbahn- — allowing movement in only one direction
  • Greek: μονόδρομος (monódromos) — allowing movement in only one direction
  • Hungarian: egyirányú — allowing movement in only one direction
  • Irish: aontreo — allowing movement in only one direction
  • Italian: senso unico — allowing movement in only one direction
  • Japanese: 一方通行 (ippō tsūkō) — allowing movement in only one direction
  • Korean: 일방통행 (ilbangtonghaeng) — allowing movement in only one direction
  • Latin: irredux — allowing movement in only one direction
  • Macedonian: еднонасочен (ednonasočen) — allowing movement in only one direction
  • Māori: ahutahi — allowing movement in only one direction
  • Polish: jednokierunkowy — allowing movement in only one direction
  • Polish: jednostronny — allowing movement in only one direction
  • Portuguese: de mão única — allowing movement in only one direction
  • Russian: односторо́нний (odnostorónnij) — allowing movement in only one direction
  • Swedish: enkelriktad — allowing movement in only one direction
  • Bulgarian: еднопосочен (ednoposočen) — allowing travel in only one direction
  • Chinese Mandarin: 單程 /单程 (dānchéng) — allowing travel in only one direction
  • Finnish: yksisuuntainen — allowing travel in only one direction
  • French: aller simple — allowing travel in only one direction
  • German: einfach — allowing travel in only one direction
  • Greek: χωρίς επιστροφή (chorís epistrofí) — allowing travel in only one direction
  • Hungarian: egyirányú — allowing travel in only one direction
  • Japanese: 片道 (katamichi) — allowing travel in only one direction
  • Korean: 편도 (pyeondo) — allowing travel in only one direction
  • Macedonian: еднонасочен (ednonasočen) — allowing travel in only one direction
  • Māori: ahutahi — allowing travel in only one direction
  • Polish: jednostronny — allowing travel in only one direction
  • Portuguese: sem retorno — allowing travel in only one direction
  • Russian: в оди́н коне́ц (v odín konéc) — allowing travel in only one direction
  • Russian: в одну́ сто́рону (v odnú stóronu) — allowing travel in only one direction
  • Swedish: enkel — allowing travel in only one direction
  • Swedish: enkel- — allowing travel in only one direction
  • Bulgarian: еднопосочен (ednoposočen) — computer science: easy to compute, hard to invert
Real reading context

one-way in complete knowledge articles