vapor (n.)
- air
- apparition
- autism
- babble
- blabber
- blather
- blow
- bluff
- bluster
- boast
- bombast
- bounce
- brag
- brainchild
- bubble
- bull
- bullshit
- bully
- chimera
- cloud
- daydream
- deception
- delirium
- delusion
- depression
- distemper
- dream
- dreamland
- dreamworld
- drivel
- drool
- emit
- ether
- exhalation
- exhaust
- fancy
- fantasy
- fiction
- figment
- film
- flourish
- fog
- fume
- gabble
- gas
- gasconade
- gauze
- geyser
- gibber
- hallucination
- haze
- hector
- hypochondria
- hysteria
- illusion
- imagery
- imagination
- invention
- jabber
- maggot
- make-believe
- misconception
- mist
- morbidity
- myth
- nervousness
- phantasm
- phantom
- piffle
- pontificate
- prate
- prattle
- puff
- rage
- rant
- rattle
- rave
- reek
- romance
- self-deceit
- self-deception
- shadow
- slang
- smog
- smoke
- spirit
- splutter
- sputter
- steam
- storm
- swagger
- trick
- trip
- twaddle
- vaunt
- vision
- waffle
- whim
- whimsy
