ool
noun
ool is spelled O-O-L: 3 letters. It appears about once in every 14 million words in written English, the 111,684th most frequent word form (wordfreq, 2021 data). As a noun, ool means “A swimming pool into which urinating is not allowed” (English Wiktionary, September 2026). The plural of ool is ools.
How many letters and syllables are in ool?
| Letters | 3: O-O-L |
|---|---|
| In writing | about once in every 14 million words; the 111,684th most frequent word form |
| Wrong spellings searched | none measured in search |
| Same letters |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); rhymes and same-letter words are computed by PlainSpell from its own word list.
How common is ool?
Ool appears about once in every 14 million words in written English, the 111,684th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
What rhymes with ool?
No other word on PlainSpell ends in the same sounds as ool.
Spelled with the same letters in another order: loo, olo.
Computed by PlainSpell from the pronunciations in the English Wiktionary (dump of September 2, 2026): a rhyme shares every sound from the last stressed vowel to the end; ordered by written frequency (wordfreq 3.1).
Forms of ool
- ools plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does ool mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
rareA swimming pool into which urinating is not allowed.
noun
- 1
Initialism of object-oriented language.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does ool come from?
From pool with the letter "p" (called pee) removed.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).