Leggings and Leotard

Leotard and leggings are semantically related In some cases you can use "Leotard" instead a noun "Leggings".

Leotard 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.

Leggings and leotard are semantically related in one-piece undergarment for legs topic. You can use "Leggings" instead a noun "Leotard".