Standard Lemma guide

speedo

noun · 4 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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  • rhymes with -iːdəʊ
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1

noun

Meaning 1

A speedometer, particularly one in a race car or other automobile.

Definition source: English Wiktionary via Wiktextract

Usage: informal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

Alternative letter-case form of Speedo.

Definition source: English Wiktionary via Wiktextract

Usage: alt-of

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A tight-fitting swimsuit, especially commonly worn by competitive swimmers and divers. Usually implies a brief or bikini style swimsuit.

Definition source: English Wiktionary via Wiktextract

Usage: US

Examples

  • I could tell that she was a serious swimmer, because every time I saw her at the pool she was wearing a Speedo of one design or another.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

(by restriction) A male swimsuit, very tight fitting and small, brief-style, and not a thong-type.

Definition source: English Wiktionary via Wiktextract

Usage: US

Examples

  • She called down from upstairs, "He'll be out in a minute: he's just putting his Speedo on."

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Abbreviation of speedometer.

From the name of the swimsuit company, Speedo, which first designed and manufactured swimwear in Australia that was briefer and sleeker than most other swimwear then available.

Across languages

Translations

1 source translations are retained for this English entry.

  • German: Tacho — speedometer