| FIF | position 50 in a countable series of things |
|---|---|
| FIF | the ordinal number of fifty in counting order |
| FIF | the cardinal number that is the product of ten and five |
| FIF | being ten more than forty |
| FIF | a half expressed as a percentage |
| FIF | a United States coin worth half of a dollar |
| FIF | being eight more than fifty |
| FIF | the ordinal number of fifty-five in counting order |
| FIF | equal in degree or extent or amount |
| FIF | being five more than fifty |
| FIF | being four more than fifty |
| FIF | being nine more than fifty |