Footlong
ahd-5
adjective.
Being one foot in length.
noun.
A hot dog or submarine sandwich that is one foot long.
Wiktionary, Creative Commons Attribution/Share-Alike License
adjective.
One
foot
long
.
noun.
A one-foot long
hot dog
.
Word Usage
"Apparently Subway thinks they should own the rights to the word 'footlong.'"