ball (n.)
- action
- agate
- assembly
- assignation
- bal
- balloon
- baseball
- basketball
- bat
- battledore
- bauble
- bead
- bladder
- blob
- blowout
- boll
- bolus
- bowl
- brawl
- bubble
- buckshot
- bulb
- bulbil
- bulblet
- bullet
- cannonball
- caucus
- checkerboard
- chessboard
- clew
- clot
- club
- cockhorse
- colloquium
- commission
- committee
- conclave
- concourse
- congregation
- congress
- conventicle
- convention
- convocation
- council
- couple
- cover
- cue
- dance
- date
- diddle
- diet
- dinner
- discus
- doll
- egg
- eisteddfod
- ellipsoid
- entertainment
- festivity
- fete
- football
- forum
- fun
- game
- gathering
- gewgaw
- gimcrack
- globe
- globule
- glomerulus
- gob
- gobbet
- grape
- grapeshot
- handball
- hobbyhorse
- hop
- house-raising
- housewarming
- jack-in-the-box
- jacks
- jackstones
- jackstraws
- kickshaw
- knickknack
- knob
- knot
- lay
- levee
- marble
- marionette
- mask
- masque
- masquerade
- mate
- meet
- meeting
- missile
- mixer
- mothball
- mount
- mushroom
- orb
- orbit
- oval
- ovoid
- panel
- party
- pellet
- picnic
- pill
- pinball
- pinwheel
- play
- plaything
- plenum
- projectile
- prom
- promenade
- puppet
- pushball
- quoit
- quorum
- racket
- rally
- reception
- rendezvous
- round
- screw
- seance
- serve
- service
- session
- shell
- shindig
- shindy
- shot
- shower
- shrapnel
- sit-in
- sitting
- slug
- smoker
- snowball
- softball
- soiree
- sphere
- spheroid
- spherule
- sport
- stag
- symposium
- synod
- taw
- teetotum
- tetherball
- top
- toy
- trinket
- turnout
- volleyball
- wad
ball (v.)
- action
- agate
- bal
- balloon
- bat
- bead
- blob
- bowl
- brawl
- bubble
- caucus
- clew
- clot
- club
- cohabit
- commission
- copulate
- couple
- cover
- cue
- dance
- date
- diddle
- diet
- egg
- fete
- fornicate
- fun
- game
- globe
- hop
- knot
- lay
- marble
- mask
- masquerade
- mate
- meet
- mothball
- mount
- mushroom
- orb
- orbit
- panel
- party
- picnic
- pill
- play
- promenade
- racket
- rally
- rendezvous
- round
- screw
- serve
- service
- shell
- shower
- slug
- snowball
- sport
- stag
- top
- toy
- wad