1
general::
I. Remain loyal; see STICK BY. 2. Persist in or continue applying oneself to, as in I'm sticking to my opinion that he's basically honest, or The music teacher told John to stick to the clarinet, at least until the end of the year. [First half of 1500s] Also see STICK TO ONE'S GUNS; STICK TO ONE'S LAST.
American Heritage Idioms
2
general::
Phrase(s): stick to someone or something
1. Lit. to adhere to someone or something; to remain affixed to someone or something. • The tape stuck to me and I couldn’t get it off. • This stamp won’t stick to the envelope. 2. Fig. to continue to accompany someone or something. • Stick to me and I’ll lead you out of here. • Stick to the group of us, and you’ll be okay. 3. Fig. to continue to use or employ someone or something. • I’ll stick to Jill. She does a good job and she’s my friend. • We decided to stick to our present supplier.
McGrawhill's American Idioms And Phrasal Verbs