Simple Definition of sidekick
: a person who helps and spends a lot of time with someone who is usually more important, powerful, etc.
Full Definition of sidekick
: a person closely associated with another as a subordinate or partner
Examples of sidekick in a sentence
the mayor and his sidekick
<movie heroes invariably have a trusty sidekick, who often provides comic relief>
First Known Use of sidekick
Seen and Heard
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