To fasten, to join to (literally and figuratively).
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.
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.
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.
to attach great importance to a particular circumstance
To take, seize, or lay hold of.
To arrest, seize.
Connected; joined.
Fond of (used with to).
I'm very attached to my pets.
In a romantic or sexual relationship.
As far as I know, he isn't attached, so I'm going to invite him out on a date.
Broadly joined to a stem or stipe, but not decurrent.
In this group of mushrooms, the attachment of the gills to the stipe ranges from attached to almost decurrent.
Of a residential building, sharing walls with similar buildings on two, usually opposite, sides.