| firs | a sergeant in the army above the rank of staff sergeant and below master sergeant |
|---|---|
| firs | a Mid-Atlantic state |
| firs | the first of a series of actions |
| firs | the first compartment of the stomach of a ruminant |
| firs | a team representing a college or university |
| firs | time period extending from the first day of the last menstrual period through 12 weeks of gestation |
| firs | Scottish statesman and brother of Elizabeth and John Haldane (1856-1928) |
| firs | British industrialist who manufactured automobiles and created a philanthropic foundation (1877-1963) |
| firs | the highest quality gems |
| firs | a war between the Allies (Russia France British-Empire Italy US Japan Rumania Serbia Belgium Greece Portugal Montenegro) and the Central Powers (Germany Austria-Hungary Turkey Bulgaria) from 1914 to 1918 |
| firs | kit consisting of a set of bandages and medicines for giving first aid |
| firs | a station providing emergency care or treatment before regular medical aid can be obtained |