I. ˈsit-ˈdau̇n adjective
Date: 1834
: served to seated diners
a sit-down dinner
also : of, relating to, or serving sit-down meals
a sit-down restaurant
II. ˈsit-ˌdau̇n noun
Date: 1936
1. : a cessation of work by employees while maintaining continuous occupation of their place of employment as a protest and means toward forcing compliance with demands
2. : a mass obstruction of an activity by sitting down to demonstrate a grievance or to get the activity modified or halted
3. : a meeting held especially to discuss and resolve problems or conflicts