attachat·tach /əˈtætʃ/ verb [transitiveT]1if conditions are attached to an agreement, they are added to it and made a part of itThe US government has attached conditions to economic aid.
2if there are benefits, rights etc attached to something, they are associated with that thingFew companies have chosen to use tax advantages attached to the revaluation.
3if a letter or document is attached to something, it is sent with itinformation given in a memo attached to his tax return