1. A general inclusive concept
   "She had only a vague notion of how the technology worked"
    
2. A vague idea in which some confidence is placed
   "his notion of her was favourable";
   - impression, feeling, belief, opinion
    
3. An odd, fanciful or capricious idea
   "the theatrical notion of disguise is associated with disaster in his stories";
   - whim, whimsy, whimsey
    
4. (usually plural) small personal articles, clothing or sewing items
   "buttons and needles are notions"

Derived forms: notions

Type of: article, concept, conception, construct, idea, thought

Encyclopedia: Notion, software