Synonymous/sɪˈnɑːnɪməs/ Definition 1 of 2Pro Tip 1/3Absolute Match Used when two things mean exactly the same, no subtle differences. In technology, the term 'geek' is synonymous with 'nerd'. Pro Tip 2/3Unspoken Implication Often implies a widespread agreement on what a term is known for. Here, 'royalty' is synonymous with 'opulence'. Pro Tip 3/3Context Specific Meanings may vary by context; not all synonyms are interchangeable. 'Childlike' is synonymous with 'innocent', not 'childish'.