chainsaw

UK: /ˈtʃeɪnˌsɔː/

Collins Concise English Dictionary © HarperCollins Publishers::

chainsaw / ˈtʃeɪnˌsɔː/ noun

1. a motor-driven saw, usually portable, in which the cutting teeth form links in a continuous chain

WordReference Random House Learner's Dictionary of American English © 2025

ˈchain ˌsaw, n. [countable]

1. Building a portable power saw having teeth on a chain that rotates continuously.

chain--saw, v. [ ~ + obj]

WordReference Random House Unabridged Dictionary of American English © 2025

chain′ saw′, 

1. Building a power saw, usually portable, having teeth set on an endless chain.

• 1840–50, American.

chain-saw  (chān′sô′), v.t. 

1. Building to cut or cut down (lumber, a tree, etc.) with a chain saw.

v.i. 

2. Building to use a chain saw.

Also, chain′saw′.