The verb attach has 5 senses (first 3 from tagged texts)
1. (23) attach -- (cause to be attached)
2. (5) attach -- (be attached; be in contact with)
3. (3) attach -- (become attached; "The spider's thread attached to the window sill")
4. bind, tie, attach, bond -- (create social or emotional ties; "The grandparents want to bond with the child")
5. impound, attach, sequester, confiscate, seize -- (take temporary possession of as a security, by legal authority; "The FBI seized the drugs"; "The customs agents impounded the illegal shipment"; "The police confiscated the stolen artwork")