fisticuff

As nouns the difference between fisticuff and pugilism

is that fisticuff is (rare) a fistfight while pugilism is fighting with fists, boxing.

As a verb fisticuff

is (chiefly|humorous) to engage in a physical fight.

As nouns the difference between fisticuff and boxing

is that fisticuff is (rare) a fistfight while boxing is (sports) a sport where two opponents punch each other with gloved fists, the object being to score more points by the end of the match or by knockout, or technical knockout or boxing can be material used for making boxes or casing.

As verbs the difference between fisticuff and boxing

is that fisticuff is (chiefly|humorous) to engage in a physical fight while boxing is or boxing can be .

As nouns the difference between taxonomy and fisticuff

is that taxonomy is the science or the technique used to make a classification while fisticuff is (rare) a fistfight.

As a verb fisticuff is

(chiefly|humorous) to engage in a physical fight.