- A unit of weight in the Ottoman Empire and certain successor states, equal to 400 dirhams. Variably equivalent to about 1.25 kilograms (2.75 pounds).
- A unit of volume in Egypt (formerly Turkey) corresponding to about 1.2 litres.
From Italian oca, from French oque, from Turkish okka. The Turkish is sometimes said to be from Arabic ÙˆÙ‚ÙŠØ© (wuqÄ«ye), but some dispute this, since the latter denotes a much smaller weight. The Arabic probably came, via Classical Syriac, from Greek Î¿Ï…Î³ÎºÎ¹Î¬ (ougkiÃ¡), from Latin uncia (“ounce, twelfth part"), from unus (“one").
- A river in central Russia, the largest right tributary of the Volga.
From Russian ÐžÐºÐ° (Oka).
- A certain village in the Canadian province of Quebec.
- (Canada) A kind of pungent, semi-soft cheese, originally made by Trappist monks in Oka, Quebec.