無償行為

むしょうこうい

noun

•

gratuitous act, volunteering

無	nothingness, none, ain't, nothing, nil, not
償	reparation, make up for, recompense, redeem
行	going, journey, carry out, conduct, act, line, row, bank
為	do, change, make, benefit, welfare, be of use, reach to, try, practice, cost, serve as, good, advantage, as a result of