Definitions

1. noun

a swimsuit designed to provide protection from the sun, often with built-in sun protection such as UPF fabric or a built-in hat.

“She wore a bright yellow sunsuit to the beach to protect her skin from the sun.”

2. noun

a garment designed to be worn in the sun, often for outdoor activities such as gardening or playing sports.

“He wore a lightweight sunsuit while working in his garden on a hot summer day.”