The word "whines" can be defined as a repetitive, high-pitched complaint, often seen as annoying or irritating. There are a variety of synonyms for this word, including, but not limited to, grumbles, moans, gripes, groans, complains, mutters, bemoans, protests, and fusses. These words all share the same general meaning of voicing discontent or dissatisfaction, but each has a slightly different tone and connotation. For example, "grumbles" might suggest a quieter, more subdued tone, while "complains" implies a more direct and confrontational approach. Whether you're describing a child who won't stop whining or an adult who constantly complains, these synonyms offer a range of options for expressing this common behavior.