ranger > define

A member of the Texas state highway patrol; formerly a mounted lawman who maintained order on the frontier.
- synonyms: Texas Ranger
An official who is responsible for managing and protecting an area of forest.
- synonyms: fire warden, forest fire fighter
A member of a military unit trained as shock troops for hit-and-run raids.
- synonyms: commando

(n.) One who ranges; a rover; sometimes, one who ranges for plunder; a roving robber.
(n.) That which separates or arranges; specifically, a sieve.
(n.) One of a body of mounted troops, formerly armed with short muskets, who range over the country, and often fight on foot.
(n.) A dog that beats the ground in search of game.
(n.) The keeper of a public park or forest; formerly, a sworn officer of a forest, appointed by the king's letters patent, whose business was to walk through the forest, recover beasts that had strayed beyond its limits, watch the deer, present trespasses to the next court held for the forest, etc.

by Webster's Revised Unabridged Dictionary

Ranger is a masculine given name