synonymous

If two words are synonymous, they mean the same thing. You tried to convince her that "love" and "chocolate" were not synonymous, but it was no use.

In addition to describing words with the same or similar meanings, you can use the adjective synonymous to describe things that are similar in a more figurative way. Summer is synonymous with picnics, playing outside, and days at the beach. Summer is also synonymous with ants, skinned knees, and sunburn!

Definitions of synonymous
1

adj (of words) meaning the same or nearly the same

Synonyms:
similar
(of words) expressing closely related meanings
substitutable
(of words) interchangeable in a given context without changing the import of the expression
Antonyms:
antonymous
of words: having opposite meanings
complementary
of words or propositions so related that each is the negation of the other
contradictory
of words or propositions so related that both cannot be true and both cannot be false
contrary
of words or propositions so related that both cannot be true but both may be false
contrastive, incompatible
of words so related that one contrasts with the other
converse
of words so related that one reverses the relation denoted by the other
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