Noun

• S: (n) veteran, veteran soldier (a serviceman who has seen considerable active service) "the veterans laughed at the new recruits"
• S: (n) veteran, vet, ex-serviceman (a person who has served in the armed forces)
• direct hyponym / full hyponym
• member holonym
• direct hypernym / inherited hypernym / sister term
• S: (n) veteran, old-timer, oldtimer, old hand, warhorse, old stager, stager (an experienced person who has been through many battles; someone who has given long service)

Adjective

• S: (adj) seasoned, veteran (rendered competent through trial and experience) "a seasoned traveler"; "veteran steadiness"; "a veteran officer"