Quick definitions from WordNet (thorn)
▸ noun: a Germanic character of runic origin
▸ noun: something that causes irritation and annoyance ("He's a thorn in my flesh")
▸ noun: a sharp-pointed tip on a stem or leaf
▸ name: A surname (common: 1 in 25000 families; popularity rank in the U.S.: #2785)
▸ Also see thorn
▸ noun: a Germanic character of runic origin
▸ noun: something that causes irritation and annoyance ("He's a thorn in my flesh")
▸ noun: a sharp-pointed tip on a stem or leaf
▸ name: A surname (common: 1 in 25000 families; popularity rank in the U.S.: #2785)
▸ Also see thorn