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
adjective: marked by great fruitfulness
"A fat land."
"A nice fat job."
adjective: having a relatively large diameter
"A fat rope."