Lifer

Noun

 * 1) A prisoner sentenced to life in prison.
 * 2) A person who makes a career in the military.
 * 3) A bird species seen for the first time by a birder who is keeping a list of all the birds he or she has seen in their life time.

Thesaurus
POW, cageling, captive, chain gang, con, convict, detenu, ex-convict, gaolbird, internee, jailbird, parolee, political prisoner, prisoner, prisoner of war, stir bird, ticket-of-leave man, ticket-of-leaver, trusty

Translations

 * Japanese: 囚人 (shūjin)

Anagrams

 * filer
 * flier
 * rifle