不定積分: antiderivative, indefinite integral

定積分: definite integral

橄欖石: olivine, peridot / 観覧席: spectator's seat, audience's seat

change into, transform

break, destroy, tear / break, violate, infringe / defeat, beat / (software) crack, break a password

Ka-ending dialect form of あつい (atsui, “hot”)

厚い: thick / 厚い, 篤い: hearty, sincere, warm / 篤い: (of sickness) serious

熱い: (of an object or feeling) hot / 熱い: (of one's body temperature) hot, feverish / 熱い: ardent, enthusiastic, impassionate / 熱い: (of love between a couple) passionate / 暑い: (of weather) hot, baking

忠厚: a male given name

break / cut