Synonym
A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words begin, start, commence, and initiate are all synonyms of one another: they are synonymous. The standard test for synonymy is substitution: one form can be replaced by another in a sentence without changing its meaning.
Extends: [Types of words](https://wikipedia.org.ai/Types of words), [Semantic relations](https://wikipedia.org.ai/Semantic relations)