Tra từ old hand - Từ điển WordNet v3.1

Từ điển WordNet v3.1 - WordNet Dictionary

old hand

noun

an experienced person who has been through many battles;
someone who has given long service
• Syn:
veteran, old-timer, oldtimer, warhorse, old stager, stager
• Derivationally related forms:
veteran (for: veteran)
• Hypernyms:
expert