Combined from 刈 [刈] + Grain / Crop [禾] to compose 利: represents "advantage".
to be effective
to make use of
victory, triumph, conquest, success, win
gravel, ballast, pebbles
left-handedness, sake drinker, left-hander
intelligence
interest (bank)
profit, returns
interest (bank)
advantage, point in favor
advantages and disadvantages, interest
right, privilege
disadvantage, handicap, unfavorable, drawback
advantageous, better, profitable, lucrative
profits, gains, (political, economic) interest
clever, shrewd, bright, sharp, wise, intelligent
utilization
useful, convenient