What is the meaning of Hang_on?

To wait a moment.

To hold, grasp, or grip.

To keep; to store something for someone.

To pay close attention to, or regard with (possibly obsequious) admiration.

To continually believe in something; to have faith in.

To persevere.

To depend upon.

To weigh down or oppress.

Used other than figuratively or idiomatically: see hang, on.

Source: wiktionary.org