noun · verb · 11 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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boi
Received-Pronunciation:/ˈbɔɪ/
British, Southern, Standard:/ˈboj/
Southern-England:Recorded audio is listed in the source snapshot.
A float moored in water to mark a location, warn of danger, indicate a navigational channel or for other purposes
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
2
noun
Meaning 2
A float moored in water to mark a location, warn of danger, indicate a navigational channel or for other purposes
A lifebuoy; a life preserver.
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
3
noun
Meaning 3
A sign where the non-dominant hand is held in a stationary configuration as a landmark for meaning associations with the dominant hand.
Definition source: English Wiktionary via Wiktextract
Qualifier: sign language
Topics: human-sciences, linguistics, sciences
Examples
list buoy
Meaning relationships
Synonyms: none provided
Antonyms: none provided
4
verb
Meaning 4
To keep afloat or aloft; used with up.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
5
verb
Meaning 5
To support or maintain at a high level.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
6
verb
Meaning 6
To mark with a buoy.
Definition source: English Wiktionary via Wiktextract
Usage: transitive
Examples
to buoy an anchor; to buoy or buoy off a channel
Meaning relationships
Synonyms: none provided
Antonyms: none provided
7
verb
Meaning 7
To maintain or enhance enthusiasm or confidence; to lift the spirits of.
Definition source: English Wiktionary via Wiktextract
Examples
Buoyed by the huge success, they announced two other projects.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
8
noun
Meaning 8
bright-colored; a float attached by rope to the seabed to mark channels in a harbor or underwater hazards
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: reference point, point of reference, reference
Narrower terms: acoustic buoy, can, can buoy, conical buoy, nun, nun buoy, spar buoy
9
verb
Meaning 9
mark with a buoy
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: mark
10
verb
Meaning 10
keep afloat
Definition source: Princeton WordNet 3.0
Examples
The life vest buoyed him up
Meaning relationships
Synonyms: buoy up
Antonyms: none provided
Broader terms: hold, support, sustain, hold up
11
verb
Meaning 11
float on the surface of 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: float, swim
History
Etymology
From Middle English boy, boye, from Middle Dutch boeye (“float, buoy”), from Old French boue (“piece of wood or cork that floats above an anchor to indicate where it is anchored”) (modern French bouée), ultimately from Frankish *baukn (“beacon”), from Proto-Germanic *baukną. Doublet of beacon. Alternatively, and perhaps less likely (due to the unexplained shift in meaning), from Middle Dutch boeye (“shackle, fetter”), from Old French buie (“fetter, chain”), from Latin boia (“a (leather) collar, band, fetter”), from Ancient Greek βόεος (bóeos), βόειος (bóeios, “of ox-hide”), from βοῦς (boûs, “ox”), from Proto-Indo-European *gwṓws (“cow”). Noun sense 2 was coined by American linguist Scott K. Lindell in 2003.
Across languages
Translations
116 source translations are retained for this English entry.