Definitions:
an implement with two or more prongs used for lifting food to the mouth or holding it when cutting.

the point where something, especially a road or river, divides into two parts

each of a pair of supports in which a bicycle or motorcycle wheel revolves.

a flash of forked lightning.

a simultaneous attack on two or more pieces by one.

(especially of a route) divide into two parts

dig or move (something) with a fork

attack (two pieces) simultaneously with one