IPA: /ˈfɜːrlɒŋ/
KK: /ˈfɜrˌlɔŋ/
A unit of distance that is equal to one-eighth of a mile, or about 201 meters.
The horse raced a distance of one furlong before reaching the finish line.
Furlong originates from the Old English 'furh' (meaning furrow) and 'lang' (meaning long). The word refers to the length of a furrow in a plowed field, which was traditionally measured as one-eighth of a mile.
Think of a 'furrow' ('furh') in a field that is 'long' ('lang') — that's how a furlong is defined as a long distance in farming.