訓 き(く) ・ 音 リ
漢越音: lợi
Rice plant 禾 plus knife 刂: harvesting grain with a sharp blade brings profit, so it means advantage or benefit (Han Viet loi, as in loi ich = benefit).
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
図書館をよく利用します。 (としょかんをよくりようします)
I often use the library.