noun
- buttocks
- nates
- butt
- backside
- bum
- buns
- can
- fundament
- hindquarters
- hind end
- keister
- posterior
- prat
- rear
- rear end
- rump
- stern
- seat
- tail
- tail end
- tooshie
- tush
- bottom
- behind
- derriere
- fanny
- ass
- body part
- opening
- orifice
- porta
sounds kind of like
- aarhus
- ahorse
- air gas
- air hose
- air sac
- air sick
- air sock
- airs
- airsick
- araceae
- araceous
- arachis
- araguaia
- araguaya
- arak
- aras
- arauca
- araujia
- arawak
- araxes
- arc
- arca
- arccos
- arch
- archaeozoic
- archaic
- archaise
- archaize
- archeozoic
- archway
- arcsec
- arcus
- areca
- arecaceae
- ares
- argo
- argos
- argosy
- argue
- argus
- arhus
- aries
- ariose
- arioso
- arise
- arius
- ark
- arouse
- arrack
- arras
- arrears
- auric
- auriga
- aurochs
- aurous