| firs | the leading woman in an art or profession |
|---|---|
| firs | one's native language |
| firs | a body remains at rest or in motion with a constant velocity unless acted upon by an external force |
| firs | the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes |
| firs | a commissioned officer in the army or air force or marines ranking above a 2nd lieutenant and below a captain |
| firs | the first light of day |
| firs | the British cabinet minister responsible for economic strategy |
| firs | commander of the British forces in the American War of Independence |
| firs | the officer below the master on a commercial ship |
| firs | the sum of the values of a random variable divided by the number of values |
| firs | a mortgage that has priority over all mortgages and liens except those imposed by law |
| firs | the name that precedes the surname |