spar (n.)
- bar
- battle
- beam
- bicker
- boom
- bout
- bowsprit
- box
- boxing
- brawl
- broil
- bumpkin
- cavil
- clash
- close
- club
- combat
- contest
- crank
- crow
- crowbar
- dispute
- duel
- fence
- feud
- fight
- fighting
- fisticuffs
- fore-topmast
- foremast
- gaff
- gooseneck
- grapple
- handspike
- hassle
- jack
- jigger
- jimmy
- jostle
- joust
- lever
- limb
- mainmast
- marlinespike
- mast
- masthead
- mizzen
- mizzenmast
- moot
- outrigger
- peavey
- pedal
- pole
- prize
- prizefight
- pry
- pugilism
- quarrel
- quibble
- riot
- scramble
- scrap
- scuffle
- shadowboxing
- skirmish
- spat
- spreader
- sprit
- squabble
- stick
- struggle
- tiff
- tilt
- timber
- topmast
- tourney
- treadle
- tree
- tussle
- war
- wrangle
- wrestle
- yard
- yardarm
spar (v.)
- altercate
- argue
- argufy
- bar
- battle
- beam
- bicker
- boom
- bout
- box
- brawl
- broil
- cavil
- clash
- close
- club
- collide
- combat
- contend
- contest
- crank
- crow
- differ
- dispute
- duel
- fence
- feud
- fight
- grapple
- hassle
- jack
- jimmy
- jostle
- joust
- lever
- limb
- moot
- pedal
- pettifog
- plead
- pole
- polemicize
- polemize
- prize
- prizefight
- pry
- quarrel
- quibble
- riot
- scramble
- scrap
- scuffle
- skirmish
- spat
- squabble
- stick
- strive
- struggle
- tilt
- tourney
- treadle
- tree
- tussle
- war
- wrangle
- wrestle