second fiddle

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. someone who serves in a subordinate capacity or plays a secondary role
• Syn:
second banana
• Hypernyms:
subordinate, subsidiary, underling, foot soldier
2. a secondary role or function
- he hated to play second fiddle to anyone
• Hypernyms:
function, office, part, role