late 14c., from Old French usable "available, in use" (14c.), from user (see use (v.)). Not a common word before c. 1840, when probably it was re-formed from use (v.) + -able. Related: Usably.
usable byproducts
the lawnmower is a bit rusty but still usable
2000 square feet of usable office space
urticaria
Uruguay
US
us
USA
usable
usage
usb
use
used
useful
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