notion
noun.
a vague idea in which some confidence is placed
his impression of her was favorable|what are your feelings about the crisis?|it strengthened my belief in his sincerity|I had a feeling that she was lying
noun.
a general inclusive concept
noun.
an odd or fanciful or capricious idea
the theatrical notion of disguise is associated with disaster in his stories|he had a whimsy about flying to the moon|whimsy can be humorous to someone with time to enjoy it
Synonym: whim, whimsey, whimsy
noun.
(usually plural) small personal articles or clothing or sewing items
buttons and needles are notions