noun · 2 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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Received-Pronunciation:/neɪtəˈtɔːɹɪəm/
Received-Pronunciation:Recorded audio is listed in the source snapshot.
General-American:/neɪtəˈtɔːɹi.əm/
General-American:/nætə-/
General-American:/næɾə-/
General-American:Recorded audio is listed in the source snapshot.
1
noun
Meaning 1
A swimming pool, especially an indoor one; a building housing one or more swimming pools.
Definition source: English Wiktionary via Wiktextract
Usage: US
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
noun
Meaning 2
pool that provides a facility for swimming
Definition source: Princeton WordNet 3.0
Examples
`swimming bath' is a British term
Meaning relationships
Synonyms: swimming pool, swimming bath
Antonyms: none provided
Broader terms: athletic facility, pool
History
Etymology
Borrowed from Late Latin natatorium, noun use of the neuter singular of Latin natātōrius (“for swimming”). Equivalent to natatory + -ium.