The term 'weak ones' can be summarized by the crossword solution 'RUNTS' which is a five letter word. RUNTS are typically used to describe small, weak, or inferior individuals or things. This term is often used to describe animals, such as puppies, that are smaller than their littermates. It can also be used to describe plants that are smaller than their peers. In some cases, it can be used to describe people who are not as strong or capable as others.