形容词

1. 相关的;相应的;有重要性的
Something that is relevant to a situation or person is important or significant in that situation or to that person.

2. 适当的;合适的;确切的
The relevant thing of a particular kind is the one that is appropriate.

1. having a bearing on or connection with the subject at issue

e.g. the scientist corresponds with colleagues in order to learn about matters relevant to her own research