flintlock

n old-fashioned gun, in which the gunpowder is lit by a spark struck from a flint 火石簧扳枪.

flicker, flier, flier (also flyer), flies, flight, flight attendant, flight lieutenant, flight path, flight sergeant, flight simulator, flight-deck, flight-recorder, flightless, flighty, flimsily, flimsiness, flimsy, flinch, fling, flint, flinty, flip, flip side, flip-flop, flippancy, flippant, flippantly, flipper, flipping, flirt, flirtation, flirtatious, flit, float, floating, flock, floe, flog, flogging, flood,