To fasten, join, or connect something to something else. She attached the document to the email before sending it.
To attribute or assign a particular quality or characteristic to something. People often attach great importance to first impressions.
To become emotionally connected or involved with someone or something. He quickly attached himself to the new group of friends.
To legally seize or take possession of property. The court decided to attach his assets due to unpaid debts.
To assign or appoint someone to work with a particular unit, group, or organization, especially on a temporary basis. During her internship, she was attached to the marketing department for three months.