Definition of foin

• n. - The beech marten (Mustela foina). See Marten.
• n. - A kind of fur, black at the top on a whitish ground, taken from the ferret or weasel of the same name.
• v. i. - To thrust with a sword or spear; to lunge.
• v. t. - To prick; to st?ng.
• n. - A pass in fencing; a lunge.