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: shady activities 
Words: wrongful, fudge, unwarranted, fix, cake
cake

Category: corporate 
Words: corporation, firm, alignment, taut, leverage
taut

Category: fried food 
Words: fritter, dessert, croquet, spend, danish

spend