Definitions

1. noun

A person who accompanies and supports another person, often in a subordinate or secondary role.

“The sidekicker helped the lead actor with his lines during rehearsals.”

2. noun

A companion or associate, especially in a subordinate or secondary role.

“The sidekicker to the famous musician was a talented guitarist.”

3. verb

To accompany and support someone, often in a subordinate or secondary role.

“The new sidekicker to the team helped the lead developer with the project.”