To press asunder; in the future down or separate from such a thing; to disengage.
others:
To unfasten; disunite; disengage and separate, as one thing from another: as, to detach a locomotive from a train; to detach a rock from its bed; to detach the seal from a document; to detach a man from their celebration.
to split up for a special function or service; deliver away, as from a post of duty or a more substantial body, on a definite mission: mainly in armed forces usage: as, to detach a ship or a regiment for some unique task; to detach an officer from a ship or place.
Synonyms To sever, withdraw, draw off, disjoin, disconnect unhitch.
To detail.
To become detached or separated; individual or disunite it self or an individual's self.
How would you define detach?