Standard Lemma guide

airfoil

noun · 3 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

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  • CMU ARPABET: EH1 R F OY2 L Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A structure shaped to produce lift when moving in air.

Definition source: English Wiktionary via Wiktextract

Usage: Canada, US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: foil

Antonyms: none provided

2

noun

Meaning 2

A wing of an aircraft.

Definition source: English Wiktionary via Wiktextract

Usage: Canada, US

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: wing

Antonyms: none provided

3

noun

Meaning 3

a device that provides reactive force when in motion relative to the surrounding air; can lift or control a plane in flight

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: aerofoil, control surface, surface

Antonyms: none provided

Broader terms: device

Narrower terms: aileron, elevator, flap, flaps, horizontal stabilizer, horizontal stabiliser, tailplane, rotor blade, rotary wing, rudder, spoiler, stabilizer, vertical tail, wing

History

Etymology

Etymology tree Proto-Indo-European *h2ews- Proto-Indo-European *h2ewsér Proto-Hellenic *auhḗr Ancient Greek ᾱ̓ήρ (āḗr)bor. Latin āēr Old French airbor. Middle English aire English air English foil English airfoil From air + foil.

Across languages

Translations

16 source translations are retained for this English entry.

  • Dutch: vleugelprofiel — structure shaped to produce lift when moving in air
  • Finnish: siipiprofiili — structure shaped to produce lift when moving in air
  • French: profil d'aile — structure shaped to produce lift when moving in air
  • German: Tragflächenprofil — structure shaped to produce lift when moving in air
  • Greek: αεροτομή (aerotomí) — structure shaped to produce lift when moving in air
  • Icelandic: vængildi — structure shaped to produce lift when moving in air
  • Irish: aereiteog — structure shaped to produce lift when moving in air
  • Italian: profilo alare — structure shaped to produce lift when moving in air
  • Korean: 날개골 (nalgaegol) — structure shaped to produce lift when moving in air
  • Korean: 에어포일 (eeopoil) — structure shaped to produce lift when moving in air
  • Polish: profil lotniczy — structure shaped to produce lift when moving in air
  • Portuguese: aerofólio — structure shaped to produce lift when moving in air
  • Russian: аэродинамический профиль (aerodinamičeskij profilʹ) — structure shaped to produce lift when moving in air
  • Spanish: perfil alar — structure shaped to produce lift when moving in air
  • Spanish: perfil aerodinámico — structure shaped to produce lift when moving in air
  • Spanish: perfil — structure shaped to produce lift when moving in air
Real reading context

airfoil in complete knowledge articles