Rest on is a phrasal verb that means to depend on or rely on something. It can also mean to recline or lie on a surface for support or relaxation. There are several synonyms for rest on, including hinge on, rely on, count on, be based on, lean on, trust in, resort to, and rest upon. These synonyms suggest that rest on is a versatile expression that can convey a variety of meanings, from indicating a person's dependence on someone or something to describing their physical position. Choosing the right synonym will help communicate your intended meaning and tone effectively.