abstract
annoyed argument
battle
black
boxing
business
business rivals
cartoon
challenge
clash
competition
competitor
concept
conflict
confrontation
contest
contour
design
drawing
emotional
emotions
enemy
female fight
fight
friendship
game
hands
illustration
isolated
line
linear
male
man
match
opponent
outline
partners
people
red
rival
rivalry
silhouette
simple
sport
strong
vs
winner