一生懸命
いっしょうけんめいWith all one's might, very hard
N4adverb·isshoukenmei
How to remember it
一生 (one's whole life) + 懸命 (risking life) — effort as if your life depends on it.
Example sentences
彼は一生懸命勉強している。
かれはいっしょうけんめいべんきょうしている。
He is studying as hard as he can.
一生懸命働けば夢は叶う。
いっしょうけんめいはたらけばゆめはかなう。
If you work hard, your dreams will come true.
Usage
Often takes に to modify verbs of effort; can also act as a na-adjective.
Related words
頑張る必死懸命