expression, transitive verb, suru verb (irregular)
Expresses depending on someone or something for support, help, or reliability. Often used with people, tools, or resources. Compare with 頼りになる (to be reliable).
See also: 頼りになる
困ったときは友達を頼りにしている。
I rely on my friends when I'm in trouble.
He continued his journey relying only on the map.