(noun)
a hump in the form or position of something;
e.g. I knew from the hunch of her back that she was in very low spirits.
(noun)
the action of carelessly or roughly pushing something/someone, or an instance of this action;
e.g. I gave the heavy door a hunch with my shoulder to see if it would move.
(verb)
to bend the top of one's body forward with the shoulders raised and/or the back curved/rounded;
e.g. He had to hunch to pass through the short doorway.
(verb)
to sit in a bent posture with the top of one's body bent forward, with one's shoulders raised and/or back curved;
e.g. They hunch under the blankets to keep warm.
(verb)
to shove something/someone, to push or deal with them in a hasty, rough, or careless manner;
e.g. I used my foot to hunch the boxes out of my way.
(noun)
in regional usage, a lump or hunk of something, i.e. a thick piece of it;
e.g. They only had a hunch of bread to eat.