a word or phrase that means exactly or nearly the same as another word or phrase in the same language, for example shut is a synonym of close:‘the East’ was a synonym for the Soviet empire‘shut’ is a synonym of ‘close’
a person or thing so closely associated with a particular quality or idea that the mention of their name calls it to mind:the Victorian age is a synonym for sexual puritanism
Biology a taxonomic name which has the same application as another, especially one which has been superseded and is no longer valid.
