Ghillie, derived from the Scottish Gaelic word "gille" meaning servant or youth, originally referred to a type of shoe worn by Scottish highlanders. However, over time, the term has come to also refer to a type of outdoor clothing commonly worn by hunters and military snipers. Other synonyms for ghillie include "sniper suit," "camouflage clothing," and "gilly suit." Additionally, the term "hide suit" is often used to describe a ghillie suit that is designed to blend in with a natural environment, allowing hunters and snipers to remain unseen by their prey or enemies. Overall, these synonyms all refer to a type of clothing designed to provide effective camouflage in outdoor environments.