What is the definition of a synonym?

A synonym is defined as a word that has a similar meaning to another word. This means that synonyms can often be used interchangeably in various contexts while retaining a similar meaning. For example, "happy" and "joyful" are synonyms as both convey similar sentiments related to positive emotions. Understanding synonyms is a vital aspect of vocabulary development since it enables learners to expand their word choices and improve their comprehension and expression in both speaking and writing. Recognizing synonyms can also aid in nuanced language use, allowing for more precise communication.