The term 'whiner' is used to describe someone who complains or expresses dissatisfaction in an annoying way. This term can be broken down into four crossword solutions: NAG (3 letters), MOANER (6 letters), PULER (5 letters), and CRYBABY (7 letters). NAG is a verb meaning to persistently scold or complain, while MOANER is a noun describing someone who expresses sorrow or discontent in a low, mournful sound. PULER is a verb meaning to pull or tug at something, and CRYBABY is a noun referring to someone who complains or cries excessively. All of these words are related to the term 'whiner' and can be used to describe someone who complains or expresses dissatisfaction in an annoying way.