The term 'is thick (with)' can be summarized by the crossword solution TEEMS, which is a five-letter word meaning 'ABOUNDS'. This term is often used to describe a situation where something is plentiful or abundant. For example, one might say that a forest is thick with trees, or that a room is thick with people. In other words, TEEMS is a way of expressing that something is present in large numbers or quantities.