IPA: /vəˈkeɪʃənər/
KK: /vəˈkeɪʃənər/
A person who is taking a break from work or daily activities to travel or relax.
During the summer, many vacationers flock to the beach to enjoy the sun.
Vacationer → It is formed from "vacation" (from Latin "vacatio", meaning freedom or release) and "-er" (meaning a person who). A vacationer is a person who is enjoying freedom or leisure time away from work or duties.
Think of someone enjoying their 'freedom' ('vacation') — the '-er' just means a person. A vacationer is someone who takes time off to relax.