/fawr"pen'ee, -peuh nee, fohr"-/ , adj.
1. Carpentry.
a. noting a nail 1 1 / 2 in. (3.8 cm) long.
b. noting certain fine nails 1 3 / 8 in. (3.5 cm) long. Symbol: 4d
2. Brit. of the amount or value of fourpence.
[ 1375-1425; late ME. See FOUR, -PENNY ]