Freudian slip

comment made accidentally by a speaker instead of what was originally intended, but which is considered to reveal his true thoughts 走嘴, 溜嘴（不留神而吐露的真心话）.

frenzy, frequency, frequent, frequently, fresco, fresh, fresh-, freshen, freshener, fresher, freshly, freshman, freshness, freshwater, fret, fretful, fretfully, fretsaw, fretwork, Freudian, Fri, friability, friable, friar, friary, fricassee, fricative, friction, Friday, fridge, fridge-freezer, fried, friend, friendless, friendliness, friendly, friendly match (also friendly), friends, friendship, frieze,