fi
n.— «Also, maybe I should keep a slang dictionary on hand for words like “crunk” and “fi.”» —by Amy Seefeldt Poor Mouth (Ga.) May 4, 2004. (source: Double-Tongued Dictionary)
Further reading
If you speak a second or third language, you may remember the first time you dreamed in that new tongue. But does this milestone mean you’re actually fluent? And a couple’s dispute over the word regret: Say you wish you’d been able...