nut (n.)
- acorn
- addict
- aficionado
- alien
- almond
- amande
- amateur
- authority
- bean
- bedlamite
- beechnut
- berry
- bigot
- buff
- bug
- butternut
- candlenut
- case
- cashew
- character
- chestnut
- chinquapin
- cobnut
- coconut
- collector
- conk
- connoisseur
- crackpot
- crank
- critic
- crop
- cuckoo
- cut
- dement
- demon
- demoniac
- devotee
- dig
- dilettante
- dome
- eccentric
- enthusiast
- expert
- faddist
- fan
- fanatic
- fiend
- flake
- flaxseed
- freak
- fruit
- gather
- goober
- grain
- groundnut
- harvest
- hay
- hayseed
- head
- hermit
- hobbyist
- hobo
- hound
- idiot
- issue
- kernel
- kola
- kook
- linseed
- loner
- loon
- loony
- lunatic
- madman
- maniac
- maverick
- meat
- monomaniac
- mow
- natural
- noddle
- noggin
- noisette
- nonconformist
- noodle
- oddball
- oddity
- original
- outsider
- pariah
- peanut
- pecan
- pick
- pip
- pistachio
- pit
- pluck
- poll
- pundit
- pursuer
- question
- recluse
- savant
- scholar
- screwball
- seed
- solitary
- specialist
- stone
- technician
- tramp
- type
- visionary
- walnut
- weirdo
- zealot