Definitions

1. noun

The quality or state of being a synonym; also, the relationship of being a synonym

“The study of synonymity helped her to find the perfect word for her poem.”

2. noun

Similarity in meaning between two or more words

“The synonymity between ‘big’ and ‘large’ made it difficult for her to choose between the two.”

3. noun

The property or characteristic of words that have the same or similar meaning

“The lexicographer studied the synonymity of the words in the ancient language.”