noun

• (horticulture) A small shoot or scion of a tree inserted in another tree, the stock of which is to support and nourish it. The two unite and become one tree, but the graft determines the kind of fruit.
• (horticulture) A branch or portion of a tree growing from such a shoot.
• (surgery) A portion of living tissue used in the operation of autoplasty.

verb

• (transitive) To insert (a graft) in a branch or stem of another tree; to propagate by insertion in another stock; also, to insert a graft upon.
• (intransitive) To insert scions (grafts) from one tree, or kind of tree, etc., into another; to practice grafting.
• (transitive, surgery) To implant a portion of (living flesh or akin) in a lesion so as to form an organic union.
• (transitive) To join (one thing) to another as if by grafting, so as to bring about a close union.
  "And graft my love immortal on thy fame!"

noun

• (obsolete) A ditch, a canal.

noun

• (uncountable) Corruption in official life.
• (uncountable) Illicit profit by corrupt means, especially in public life.
• (uncountable, slang) A criminal’s special branch of practice.
• (countable) A con job.