whim (n.)
- apparition
- bee
- brainchild
- brainstorm
- bubble
- capriccio
- caprice
- chimera
- conceit
- crank
- craze
- crotchet
- delirium
- disposition
- dream
- fad
- fancy
- fantasy
- fiction
- figment
- flimflam
- freak
- hallucination
- humor
- idea
- illusion
- imagery
- imagination
- inclination
- invention
- kink
- maggot
- make-believe
- megrim
- myth
- notion
- phantasm
- phantom
- quirk
- romance
- thought
- toy
- trip
- vagary
- vapor
- vision
- whimsy