sit-down
adjective
[ ˈsɪtdaʊn ]
• denoting a meal eaten sitting at a table.
sit-down
noun
• a period of sitting down; a short rest.
sit down
• move from a standing to a sitting position.
• "you'd better sit down"
• accept or put up with an unwelcome situation or development.
• "if they think I'm going to sit down under it, they can think again"
• encamp outside a city in order to besiege it.
• "with a large force he sat down before Ravenna"