Fears with U
Common fear of being underwater/ocean.
Claustrophobic fear of being underground.
Classic fear of the unknown—totally valid!
Fear of being under water is common too.
Common spooky fear of zombies/ghosts.
Urophobia: fear of urine/urinating exists.
Fear of being upside down is understandable.
Classic kid fear: monsters under the bed!
Fear of outer space/cosmos (cosmophobia).
- Underworld
 - under the sea
 - Ugliness
 - ulcers
 - UFO
 - Unicycles
 - urchins
 - Underwater creatures
 - Uncle
 - underwater drowning
 - Utopia
 - Uranium
 - Uselessness
 - ulcer
 - unicycle
 - undertaker
 - udders
 - Undertakers
 - Underachieving
 - umpires
 - University
 - Underpants
 - under the bed monsters
 - Under ground
 - Uterus
 - uniforms
 - Underperforming
 - Undressing
 - Undies
 - Underwater swimming
 - Unemployment
 - Underneath
 - UFOs
 - Utters
 - Utah
 - USA
 - Upstairs
 - Up high
 - unrequited love
 - Unloved
 - United States
 - Underwear showing
 - Underwater death
 - Undead people
 - Ukraine
 - UFO abduction
 - urns
 - Urinating in public
 - Upset
 - Unhappy
 - underwater animals
 - Understanding
 - Under performing
 - Underground tunnels
 - Uncertainty
 - UFO's
 - Useless
 - Uruguay
 - up in the sky
 - Ugly babies
 
Les mots dans la liste Fears with U proviennent des joueurs du jeu de mots Le Petit Bac.