N5
なくす
Definition
to lose something, to get rid of, to lose someone (wife, child, etc.)
N4
わかす
Definition
to boil, to heat, to excite, to melt (metal)
N3
つもる
Definition
to pile up, to accumulate, to estimate
N2
つっこむ
Definition
to thrust (something) into (something), to cram, to plunge into, to go into deeply, to get involved with, to meddle, to poke one's nose into, to riposte, to retort, to quip
N1
こぼす
Definition
to spill, to drop, to shed (tears), to grumble, to complain, to let one's feelings show