To fasten, to join to (literally and figuratively).
Example: "An officer is attached to a certain regiment, company, or ship."
To adhere; to be attached.
To come into legal operation in connection with anything; to vest.
Example: "Dower will attach."
To win the heart of; to connect by ties of love or self-interest; to attract; to fasten or bind by moral influence; with to.
Example: "Attached to a friend; attaching others to us by wealth or flattery"
To connect, in a figurative sense; to ascribe or attribute; to affix; with to.
Example: "To attach great importance to a particular circumstance"
To take, seize, or lay hold of.
To arrest, seize.