IPA: /ˈjuːnɪtɑːrd/
KK: /ˈjunɪˌtɑrd/
A one-piece garment that fits closely to the body, covering the torso and legs, and sometimes the arms and feet.
She wore a bright red unitard for her dance performance.
Unitard → It is formed from "uni-" (meaning one) and "tard" (from the word "tights" or "leotard", referring to a close-fitting garment). The word "unitard" describes a single piece of clothing that combines a top and bottom into one garment.
Think of 'one' ('uni-') piece of clothing that fits closely like tights — that's what a unitard is.