| FIR | firework consisting of a small explosive charge and fuse in a heavy paper casing |
|---|---|
| FIR | having lost your job |
| FIR | a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air |
| FIR | metal supports for logs in a fireplace |
| FIR | a creature of Teutonic mythology |
| FIR | a member of a fire department who tries to extinguish fires |
| FIR | nocturnal beetle common in warm regions having luminescent abdominal organs |
| FIR | tropical American click beetle having bright luminous spots |
| FIR | a metal screen before an open fire for protection (especially against flying sparks) |
| FIR | a narrow field that has been cleared to check the spread of a prairie fire or forest fire |
| FIR | a station housing fire apparatus and firemen |
| FIR | the light of a fire (especially in a fireplace) |