Given a category and a set of five words, find the word from the set that does not belong (i.e. is the least relevant) with the other words in the category. Words are separated by commas.

Category: activity 
Words: divide, croquet, fritter, squander, spend
croquet

Category: food 
Words: blunt, entree, frank, wienerwurst, bun
blunt

Category: boxing terminology 
Words: jab, level, fold, blocking, deck

fold