root for

Từ điển WordNet v3.1 - WordNet Dictionary

verb

take sides with;
align oneself with;
show strong sympathy for
- We all rooted for the home team
- I'm pulling for the underdog
- Are you siding with the defender of the title?
• Syn:
pull
• Hypernyms:
side
• Verb Frames:
- Somebody ----s PP