sit

work or act as a baby-sitter

“I cannot baby-sit tonight; I have too much homework to do”

serve in a specific professional capacity

show to a seat; assign a seat for

be seated

sit and travel on the back of animal, usually while controlling its motions

be around, often idly or without specific purpose

take a seat

assume a posture as for artistic purposes

be in session

“When does the court of law sit?”

be located or situated somewhere

“The White House sits on Pennsylvania Avenue”