Standard Lemma guide

eighteenth

adj · noun · 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.

  • /ˌeɪˈtiːnθ/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -iːnθ
  • CMU ARPABET: EY0 T IY1 N TH Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
  • CMU ARPABET 2: EY1 T IY1 N TH Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

The ordinal form of the number eighteen.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The person or thing in the eighteenth position.

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

One of eighteen equal parts of a whole.

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 party to celebrate an eighteenth birthday.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

adjective satellite

Meaning 5

coming next after the seventeenth in position

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: 18th

Antonyms: none provided

6

noun

Meaning 6

position 18 in a countable series of things

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: rank

History

Etymology

Inherited from Middle English eightetenthe, eightetethe, from Old English eahtatēoþa, from Proto-Germanic *ahtudô tehundô. Equivalent to eighteen + -th (ordinal suffix).

Across languages

Translations

105 source translations are retained for this English entry.

  • Afrikaans: agtiende — the ordinal form of the number eighteen — see also 18th
  • Armenian: տասնութերորդ (tasnutʻerord) — the ordinal form of the number eighteen — see also 18th
  • Asturian: decimoctavu — the ordinal form of the number eighteen — see also 18th
  • Azerbaijani: on səkkizinci — the ordinal form of the number eighteen — see also 18th
  • Basque: hemezortzigarren — the ordinal form of the number eighteen — see also 18th
  • Basque: hamazortzigarren — the ordinal form of the number eighteen — see also 18th
  • Belarusian: васямна́ццаты (vasjamnáccaty) — the ordinal form of the number eighteen — see also 18th
  • Bengali: অষ্টাদশ (ośṭadoś) — the ordinal form of the number eighteen — see also 18th
  • Bulgarian: осемнадесети (osemnadeseti) — the ordinal form of the number eighteen — see also 18th
  • Catalan: divuitè — the ordinal form of the number eighteen — see also 18th
  • Catalan: dihuité — the ordinal form of the number eighteen — see also 18th
  • Crimean Tatar: on sekizinci — the ordinal form of the number eighteen — see also 18th
  • Czech: osmnáctý — the ordinal form of the number eighteen — see also 18th
  • Danish: attende — the ordinal form of the number eighteen — see also 18th
  • Dutch: achttiende — the ordinal form of the number eighteen — see also 18th
  • Esperanto: dek-oka — the ordinal form of the number eighteen — see also 18th
  • Esperanto: dekoka — the ordinal form of the number eighteen — see also 18th
  • Estonian: kaheksateistkümnes — the ordinal form of the number eighteen — see also 18th
  • Finnish: kahdeksastoista — the ordinal form of the number eighteen — see also 18th
  • French: dix-huitième — the ordinal form of the number eighteen — see also 18th
  • French: dix-huit — the ordinal form of the number eighteen — see also 18th
  • West-Frisian: achttjinde — the ordinal form of the number eighteen — see also 18th
  • Georgian: მეთვრამეტე (metvrameṭe) — the ordinal form of the number eighteen — see also 18th
  • German: achtzehnte — the ordinal form of the number eighteen — see also 18th
  • Ancient Greek: ὀκτωκαιδέκατος (oktōkaidékatos) — the ordinal form of the number eighteen — see also 18th
  • Hindi: अठारहवाँ (aṭhārahvā̃) — the ordinal form of the number eighteen — see also 18th
  • Hungarian: tizennyolcadik — the ordinal form of the number eighteen — see also 18th
  • Ingrian: kaheksantoist kymmenäs — the ordinal form of the number eighteen — see also 18th
  • Italian: diciottesimo — the ordinal form of the number eighteen — see also 18th
  • Italian: diciottesimo — the ordinal form of the number eighteen — see also 18th
  • Italian: diciottesima — the ordinal form of the number eighteen — see also 18th
  • Japanese: 十八番目 (Jū hachi-banme) — the ordinal form of the number eighteen — see also 18th
  • Kazakh: он сегізінші (on segızınşı) — the ordinal form of the number eighteen — see also 18th
  • Korean: 열여덟째 (yeoryeodeoljjae) — the ordinal form of the number eighteen — see also 18th
  • Kyrgyz: он сегизинчи (on segizinci) — the ordinal form of the number eighteen — see also 18th
  • Latin: duodevicesimus — the ordinal form of the number eighteen — see also 18th
  • Latin: octavus decimus — the ordinal form of the number eighteen — see also 18th
  • Latvian: astoņpadsmitais — the ordinal form of the number eighteen — see also 18th
  • Lithuanian: aštuonioliktas — the ordinal form of the number eighteen — see also 18th
  • Luxembourgish: uechtzéngt — the ordinal form of the number eighteen — see also 18th
  • Macedonian: осумнаесетти (osumnaesetti) — the ordinal form of the number eighteen — see also 18th
  • Malayalam: പതിനെട്ടാം (patineṭṭāṁ) — the ordinal form of the number eighteen — see also 18th
  • Malayalam: പതിനെട്ടാമത്തെ (patineṭṭāmatte) — the ordinal form of the number eighteen — see also 18th
  • Manchu: ᠵᡠᠸᠠᠨ ᠵᠠᡴᡡᠴᡳ (juwan jakūci) — the ordinal form of the number eighteen — see also 18th
  • Middle English: eightetenthe — the ordinal form of the number eighteen — see also 18th
  • Middle English: eightetethe — the ordinal form of the number eighteen — see also 18th
  • Mongolian: арван наймдугаар (arvan najmdugaar) — the ordinal form of the number eighteen — see also 18th
  • Navajo: tseebíítsʼáadah góneʼ — the ordinal form of the number eighteen — see also 18th
  • Norwegian: attende — the ordinal form of the number eighteen — see also 18th
  • Occitan: dètz-e-uechen — the ordinal form of the number eighteen — see also 18th
  • Persian: هجدهم (hejdahom) — the ordinal form of the number eighteen — see also 18th
  • Polish: osiemnasty — the ordinal form of the number eighteen — see also 18th
  • Portuguese: décimo oitavo — the ordinal form of the number eighteen — see also 18th
  • Romanian: optsprezecelea — the ordinal form of the number eighteen — see also 18th
  • Romanian: optșpelea — the ordinal form of the number eighteen — see also 18th
  • Russian: восемна́дцатый (vosemnádcatyj) — the ordinal form of the number eighteen — see also 18th
  • Sicilian: diciuttìsimu — the ordinal form of the number eighteen — see also 18th
  • Slovak: osemnásty — the ordinal form of the number eighteen — see also 18th
  • Slovene: osemnajsti — the ordinal form of the number eighteen — see also 18th
  • Spanish: decimoctavo — the ordinal form of the number eighteen — see also 18th
  • Swedish: XVIII) — the ordinal form of the number eighteen — see also 18th
  • Swedish: adertonde — the ordinal form of the number eighteen — see also 18th
  • Tagalog: ikalabing-walo — the ordinal form of the number eighteen — see also 18th
  • Tajik: ҳаждаҳум (haždahum) — the ordinal form of the number eighteen — see also 18th
  • Tamil: பதினெட்டாம் (patiṉeṭṭām) — the ordinal form of the number eighteen — see also 18th
  • Tamil: பதினெட்டாவது (patiṉeṭṭāvatu) — the ordinal form of the number eighteen — see also 18th
  • Tatar: унсигезенче (unsigezençe) — the ordinal form of the number eighteen — see also 18th
  • Thai: ที่สิบแปด (tîi-sìp-bpɛ̀ɛt) — the ordinal form of the number eighteen — see also 18th
  • Turkish: on sekizinci — the ordinal form of the number eighteen — see also 18th
  • Turkmen: on sekizinji — the ordinal form of the number eighteen — see also 18th
  • Ukrainian: вісімна́дцятий (visimnádcjatyj) — the ordinal form of the number eighteen — see also 18th
  • Yiddish: אַכצנט (akhtsnt) — the ordinal form of the number eighteen — see also 18th
  • Danish: attener — the person or thing in the eighteenth position
  • Dutch: achttiende — the person or thing in the eighteenth position
  • Finnish: kahdeksastoista — the person or thing in the eighteenth position
  • French: dix-huitième — the person or thing in the eighteenth position
  • Hindi: अठारहवाँ (aṭhārahvā̃) — the person or thing in the eighteenth position
  • Hungarian: tizennyolcadik — the person or thing in the eighteenth position
  • Italian: diciottesimo — the person or thing in the eighteenth position
  • Italian: diciottesima — the person or thing in the eighteenth position
  • Latin: octavus decimus — the person or thing in the eighteenth position
  • Middle English: eightetenthe — the person or thing in the eighteenth position
  • Portuguese: décimo oitavo — the person or thing in the eighteenth position
  • Sicilian: diciuttìsimu — the person or thing in the eighteenth position
  • Spanish: decimoctavo — the person or thing in the eighteenth position
  • Swedish: artonde — the person or thing in the eighteenth position
  • Turkish: on sekizinci — the person or thing in the eighteenth position
  • Catalan: divuitè — one of eighteen equal parts of a whole
  • Catalan: dihuité — one of eighteen equal parts of a whole
  • Danish: attendedel — one of eighteen equal parts of a whole
  • Dutch: achttiende — one of eighteen equal parts of a whole
  • Finnish: kahdeksastoistaosa — one of eighteen equal parts of a whole
  • French: dix-huitième — one of eighteen equal parts of a whole
  • Georgian: მეთვრამეტედი (metvrameṭedi) — one of eighteen equal parts of a whole
  • Hindi: अठारहवाँ (aṭhārahvā̃) — one of eighteen equal parts of a whole
  • Hungarian: tizennyolcad — one of eighteen equal parts of a whole
  • Italian: diciottesimo — one of eighteen equal parts of a whole
  • Latin: octavum decimum — one of eighteen equal parts of a whole
  • Portuguese: décimo oitavo — one of eighteen equal parts of a whole
  • Russian: восемнадцатая — one of eighteen equal parts of a whole
  • Sicilian: diciuttìsimu — one of eighteen equal parts of a whole
  • Spanish: dieciochoavo — one of eighteen equal parts of a whole
  • Swedish: artondel — one of eighteen equal parts of a whole
  • Swedish: artondedel — one of eighteen equal parts of a whole
  • Yiddish: אַכצנטל (akhtsntl) — one of eighteen equal parts of a whole
Real reading context

eighteenth in complete knowledge articles