To be reliable or dependable; used to describe a person or thing you can trust and count on.
彼は何でも相談できる、頼りになる同僚だ。
He's a dependable colleague you can consult about anything.
このアプリは災害情報で頼りになる。
This app is reliable for disaster information.
小さな子どもにとって親は頼りになる存在だ。
For a small child, parents are a dependable presence.
その先輩は経験が豊富で、いつも頼りになる。
That senior colleague has a lot of experience and is always dependable.