Noun

1. a dense and disorderly crowd
2. a brief meeting of all the players from one team that are on the field with the purpose of planning the following play.

Verb

1. to crowd together as when distressed or in fear

   The sheep huddled together seeking warmth.

2. to curl one's legs up to the chest and keep one's arms close to the torso; to crouch; to assume a position similar to that of an embryo in the womb
3. to form a huddle.