"upstaging" in the verb sense
1. upstage
treat snobbishly, put in one's place
2. upstage
move upstage, forcing the other actors to turn away from the audience
3. upstage
steal the show, draw attention to oneself away from someone else
"When the dog entered the stage, he upstaged the actress"
Source: WordNet® (An amazing lexical database of English)
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