hydrofoil

/ˈhaɪ.dɹoʊˌfɔɪl/

More pronunciations (1)Fewer pronunciations

Australia/ˈhɑe.dɹəˌfoɪl/

hydrofoil noun: a wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.

Image: de:Bentzer:Ulbrahe The original uploader was Ulbrahe, Public domain, via Wikimedia Commons

Noun

hydrofoil (plural hydrofoils)

A wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.
A vessel equipped with such a device.

hydrofoil (third-person singular simple present hydrofoils, present participle hydrofoiling, simple past and past participle hydrofoiled)

(intransitive) To operate or use or ride atop a hydrofoil wing on a hull so equipped.

Synonyms:

foil

Noun
plural	hydrofoils
Verb
third-person singular present	hydrofoils
present participle	hydrofoiling
past participle	hydrofoiled
past	hydrofoiled

From hydro- + foil.

What does hydrofoil mean?: Hydrofoil means a wing attached to the hull of a ship that raises it out of the water when travelling at speed and thus reduces drag.
What is hydrofoil in Vietnamese?: Hydrofoil in Vietnamese is tàu cánh ngầm. See Hydrofoil meaning in Vietnamese.
What part of speech is hydrofoil?: Hydrofoil can be a noun or a verb.
How do you pronounce hydrofoil?: Hydrofoil is pronounced /ˈhɑe.dɹəˌfoɪl/ (Australia).
What is the plural of hydrofoil?: The plural of hydrofoil is hydrofoils.

Adapted from Wiktionary: hydrofoil (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-hydrofoil.wav.

Cite this entry: “hydrofoil.” Word.ws, https://word.ws/hydrofoil. Based on Wiktionary, CC BY-SA 4.0.