IPA: /sɪˈnɒnɪmɪti/
KK: /sɪˈnɒnɪmɪti/
The condition where two or more words have the same or similar meanings.
In English, the synonymity of 'big' and 'large' can help you vary your vocabulary.
Synonymity → It is formed from "syn-" (meaning together or with) and "onym" (from Greek "onuma", meaning name) and the suffix "-ity" (meaning the state or condition of). The word describes the state of having names that are the same or similar, hence the condition of being synonymous.
Think of 'together' ('syn-') and 'name' ('onym') to remember that 'synonymity' refers to the state of having names that are alike.