* Simple description: The child wore a superhero costume.
* Emphasis on quality: She meticulously crafted her Renaissance costume.
* Action related to the costume: He quickly changed into his costume for the play.
* Focus on the effect: The elaborate costume made her look regal.
* Negative connotation: The costume was uncomfortable and itchy.
The best way to use "costume" in a sentence depends on the specific context you want to convey.