| FU | (informal) having consumed enough food or drink |
|---|---|
| FU | to the greatest degree or extent |
| FU | the supreme commander of a fleet |
| FU | descent from parents both of one pure breed |
| FU | number needed to make up whole force |
| FU | the child of your aunt or uncle |
| FU | formalwear consisting of full evening dress for men |
| FU | the economic condition when everyone who wishes to work at the going wage-rate for their type of labor is employed |
| FU | a dive in which the diver throws the feet forward to complete a full backward somersault and enters the water feet first and facing away from the diving board |
| FU | a general officer of the highest rank |
| FU | a poker hand with 3 of a kind and a pair |
| FU | the time when the moon is fully illuminated |