(noun)
(American) a place offering facilities for some educational and/or recreational activity and also often outdoor activities, usually visited during the summer and offering living accommodations;
e.g. The children go to a theatre camp during the summer.
(noun)
a training session held for athletes before and out of the regular competition season;
e.g. The team is in basketball camp for the next two months.
(noun)
broadly, a group of people who share some common object, typically supporting the same theory/principle, person, or party, or the common object shared by such a group of people;
e.g. They belong to the rival politician's camp, so we shouldn't disclose our campaign strategies to them.
(verb)
to live in a temporary structure such as a tent for a period of time;
e.g. Her family likes to camp in the hills during the summer.
(verb)
broadly, to temporarily stay in a place, especially when this in uncomfortable or somehow inappropriate;
e.g. I offered to let him camp on my sofa while he was in town.
(adjective)
very theatrical, exaggerated, or deliberately elaborate in style, often intended to be funny or entertaining;
e.g. The play was rather camp and overly dramatic, but it was a lot of fun to watch.