a general understanding; vague or imperfect conception or idea of something

a notion of how something should be done.

an opinion, view, or belief

That's his notion, not mine.

conception or idea

his notion of democracy.

a fanciful or foolish idea; whim

She had a notion to swim in the winter.

an ingenious article, device, or contrivance; knickknack.

notions, small articles, as buttons, thread, ribbon, and other personal items, esp. such items displayed together for sale, as in a department store.

noun

need

noun

angle , apprehension , approach , assumption , awareness , clue , comprehension , conceit , concept , conception , consciousness , consideration , cue , discernment , flash , hint , image , imagination , impression , inclination , indication , inkling , insight , intellection , intimation , intuition , judgment , knowledge , opinion , penetration , perception , sentiment , slant , spark , suggestion , telltale , thought , twist , understanding , view , wind , wrinkle , caprice , fancy , humor , impulse , wish , conviction , feeling , idea , mind , persuasion , position , bee , boutade , freak , megrim , vagary , whim , whimsy , (colloq.) knicknack , belief , bibelot , desire , device , disposition , intention , knickknack , theory , whimsicality