n.1 a thing attached or to be attached, esp. to a machine, device, etc., for a special function.
2 affection, devotion.
3 a means of attaching.
4 the act of attaching or the state of being attached.
5 legal seizure.
6 a temporary position in, or secondment to, an organization.
Etymology: ME f. F attachement f. attacher (as ATTACH, -MENT)