roo

/ˈɹu/noun

roo is a noun meaning “Rest; stillness” (English Wiktionary, September 2026). It is spelled R-O-O, and it appears 1.3 times per million words in written English (wordfreq, 2021 data). The plural of roo is roos or 'roos.

What does roo mean?

noun

1
UKobsoletePeace; quietness.
2
UKRest; stillness.
3
AustraliaslangClipping of kangaroo.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How do you pronounce roo?

UK /ˈɹuː/
US /ˈɹu/

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Flame,_not_lame-roo.wav, LL-Q1860_(eng)-Naomi_Persephone_Amethyst_(NaomiAmethyst)-roo.wav, Wikimedia Commons (author and licence on each file's page).

Forms of roo

roos plural
'roo
'roos plural

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

How common is roo?

Roo appears 1.3 times per million words in written English, the 25,367th most frequent word form in the list.

roo0.0010.010.11101001,00010,000

rarerper million words of written Englishmore common

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

Words people confuse with roo

Sounds like: roux, rue (Wiktionary's homophone list; some hold only in some accents).

Also written: kangaroo.

Sources: English Wiktionary (homophones, alternative spellings).

Where does roo come from?

From Middle English roo, ro, from Old English rō, rōw (“quietness, quiet, rest”), from Proto-Germanic *rōō (“quiet, rest”), from Proto-Indo-European *h₁reh₁- (“to rest; quiet”). Cognate with Scots ro, ruve (“peace, repose”), German Ruhe (“rest, peace, tranquility”), Danish, Norwegian and Swedish ro (“rest, peace, tranquility”), Icelandic ró (“tranquility, quietness”).

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).