落ちる, 墜ちる, 落る, おちる
Conjugated: 落ちた
Ichidan verb, Intransitive
1. to fall, to drop, to come down, to crash, to collapse, to cave in, to give way
2. to set (of the sun or moon), to sink, to dip, to go down
3. to decrease (of popularity, quality, speed, sales, etc.), to decline, to deteriorate, to abate (of wind)
4. to be inferior (to), to be not as good (as), to fall short (of)
5. to come off (of dirt, paint, makeup, etc.), to come out (of a stain), to fade (of colour), to be removed (of an illness, possessing spirit, etc.)
勉強しないと試験に落ちるよ。