役に立つ

How to remember it

役 (role) に立つ (stand) = stands up to its role, i.e. it's useful.

Example sentences

• この辞書は日本語の勉強に役に立つ。

  このじしょはにほんごのべんきょうにやくにたつ。

  This dictionary is useful for studying Japanese.

• 先輩のアドバイスが役に立った。

  せんぱいのあどばいすがやくにたった。

  My senior's advice came in handy.

Usage

Takes に for what something helps with; shortened often as 役立つ.

Related words