IPA: /ˈfʊtˌlɔŋ/
KK: /ˈfʊtˌlɔŋ/
Describing something that is approximately one foot long.
I ordered a footlong sandwich for lunch.
Footlong → It is formed from "foot" (from Old English "fōt", meaning the lower extremity of the leg) and "long" (from Old English "lang", meaning having a great distance from one end to the other). The word "footlong" describes something that is a length of one foot.
Think of the measurement of a 'foot' and remember that 'footlong' means something that is one foot in length.