double-O

US:USA pronunciation: respellingUSA pronunciation: respelling(dub′əl ō′)


WordReference Random House Unabridged Dictionary of American English © 2025
dou•ble-O  (dub′əl ō′),USA pronunciation n., pl. -Os. [Older Slang.]
  1. Slang Termscareful scrutiny or close inspection.
  • after the two o's in once-over 1915–20


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