4-letter words containing se
- wser — Western States Endurance Run
- wseu — Wisconsin State Employees Union
- wyse — Archaic spelling of wise.
- yser — a river flowing from N France through NW Belgium into the North Sea: battles 1914–18. 55 miles (89 km) long.
- zuse — (language) An LL(1) parser generator by Arthur Pyster of the University of California at Santa Barbara. ZUSE requires Pascal.