Word Network: 役立つ

Information, data, or news about a specific subject. It refers to knowledge communicated or received concerning a particular fact or circumstance.

Katsuyou refers to the practical or effective application of a resource, skill, or piece of information to achieve a goal. In a linguistic context, it specifically describes the conjugation or inflection of verbs and adjectives to change their grammatical function.

The act of giving or doing something to help make something successful or to advance a cause.

An object used for a specific activity or task. It can refer to physical tools or metaphorical instruments.