noun
sidekick
SYD-kihk
noun
1
A close companion or assistant, especially to a more prominent or important person.
"Batman's sidekick is Robin."
"He brought his sidekick along to help carry the equipment."
How to Use Sidekick
Learner’s notesIn plain EnglishThe loyal helper or friend who supports a main character or leader.
Common pairings
faithful sidekick
trusty sidekick
Word Forms
sidekicks plural
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Batman's _____ is Robin.
Etymology
From "side" plus old slang "kick", meaning a front trouser pocket — considered the safest place to keep valuables, so a "sidekick" was one's closest, most trusted companion.