to cut or cut down (lumber, a tree, etc.) with a chain saw.
to use a chain saw.
also chain saw, chain-saw; 1818 as a surgical apparatus; 1835 in the saw mill sense, from chain (n.) + saw (n.).
a person who stands in the chains to take soundings; leadsman.
a seat, especially for one person, usually having four legs for support and a rest for the back and often having rests for the arms. something that serves as a chair or supports like a chair: The two men clasped hands to make a chair for their injured companion. a seat of office or authority. […]
a chair that can be opened out to form a bed. bed chair.
a day coach having two adjustable seats on each side of a central aisle. (not in technical use) parlor car.