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Definition of billow

billow

/ˈbɪl.oʊ/
bil · low

Plural:billows
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Adjective:billowy
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Past Simple:billowed
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Past Participle:billowed
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Present Participle:billowing
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billow Lexical Profile

billow Game Scores & Validity

• verb

1

To fill with air and swell outward (especially of fabric, sails, or garments).

Example

"The linen curtains billowed inward as a cool evening breeze swept through the open window."


2

To rise, roll, or move outward in large undulating masses (especially of smoke, clouds, or mist).

Example

"Thick gray smoke billowed from the chimney of the old stone cottage."

Synonyms
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Antonyms
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• noun

1

A large, undulating mass of something, typically cloud, smoke, or steam.

Example

"Great billows of white steam rose from the locomotive as it pulled into the station."


2

A large, rolling wave or swell of water in the sea.

Example

"The wooden schooner pitched and rolled across the foaming billows of the North Atlantic."

Synonyms
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• Rhymes for billow

Word Origin & Etymology

Borrowed in the mid-16th century from Old Norse bylgja ('a wave, swell'), which stems from a Proto-Germanic root meaning 'to swell' (shared with the English word 'bulge').

Cite this Entry


Wordmom. (2026). Definition of Billow. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/billow
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