firkin
- n a British unit of capacity equal to 9 imperial gallons
- n a small wooden keg
firmament
- n the apparent surface of the imaginary sphere on which celestial bodies appear to be projected
firmiana simplex
- n deciduous tree widely grown in southern United States as an ornamental for its handsome maplelike foliage and long racemes of yellow-green flowers followed by curious leaflike pods
firmness
- n the muscle tone of healthy tissue
his muscular firmness - n the trait of being resolute
- n the property of being unyielding to the touch
- n the quality of being steady or securely and immovably fixed in place
firmware
- n (computer science) coded instructions that are stored permanently in read-only memory