A vague idea in which some confidence is placed
Belief
Feeling
Impression
Opinion
Thought
Idea
Effect
Intuition
First blush
Presence
Hunch
Suspicion
An odd or fanciful or capricious idea
Whim
Whimsey
Whimsy
The theatrical notion of disguise is associated with disaster in his stories
A general inclusive concept
Concept
Conception
Construct
Mumpsimus
Notional
(usually plural) small personal articles or clothing or sewing items
Article
Ribbon
Buttons and needles are notions