Collocations for notion - noun

absurd, foolish, misguided, ridiculous, silly
foggiest, vague
I haven't the foggiest notion of how to get there.

romantic
accepted, common, conventional, popular, traditional
preconceived
basic, general
There seems to be a general notion that nothing can be done about the problem.

simple, simplistic
false

have
He has a very vague notion of who his customers are.

challenge, debunk, dismiss, dispel
We must dispel this notion that you can rely on the state for everything.

accept, entertain
They refused to entertain the notion.

reinforce, support

notion of
They have come to reject the traditional notion of womanhood.