plural of depth-first search

plural of first class match

plural of first cosmic velocity

plural of first-passage time

plural of first among equals

plural of first-order spectrum

plural of first-order logic

plural of private first class

Alternative form of first aid kit

(US, law) A legal doctrine that limits the rights of a copyright or trademark owner by allowing certain forms of distribution, such as enabling individuals to sell legally purchased copyrighted works to others.