Definition of "Fat" :

noun: excess bodily weight

"She disliked fatness in herself as well as in others."

noun: a kind of body tissue containing stored fat that serves as a source of energy; it also cushions and insulates vital organs

"Fatty tissue protected them from the severe cold."

noun: a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides)

"Pizza has too much fat."

verb: make fat or plump

adjective: having an (over)abundance of flesh

"He hadn't remembered how fat she was."

adjective: containing or composed of fat

"Fatty food."

adjective: marked by great fruitfulness

"A fat land."

adjective: lucrative

"A nice fat job."

adjective: having a relatively large diameter

"A fat rope."