[ duhb-uh l-oh ]
/ ˌdʌb əlˈoʊ /
noun, plural dou·ble-Os. Older Slang.
careful scrutiny or close inspection.
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Question 1 of 7
Origin of double-O
1915–20; after the two o's in once-over
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020