Garment and Unitard

Garment noun - An article of clothing.

Unitard and garment are semantically related. In some cases you can replace term "Unitard" with "Garment", this nouns are similar.

Unitard noun - A tight-fitting garment of stretchy material that covers the body from the shoulders to the thighs (and may have long sleeves or legs reaching down to the ankles); worn by ballet dancers and acrobats for practice or performance.

Garment and unitard are semantically related. You can use "Garment" instead a noun "Unitard".