汽車が急に止まった。

train (sometimes specifically a steam train)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

urgent; sudden; abrupt; sharp; steep; precipitous; rapid; swift; fast; emergency; crisis; hurrying; haste; (in gagaku or noh) end of a song

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

to stop (moving); to come to a stop; to stop (doing, working, being supplied); to come to a halt; to cease; to be stopped; to be suspended; to alight; to perch on