Bhagavad Gītā Chapter Seven verse 2

jñānaṃ te ’haṃ savijñānam idaṃ vakṣyāmy aśeṣataḥ |
yaj jñātvā neha bhūyo ’nyaj jñātavyam avaśiṣyate ||

jñāna - knowing; knowledge; higher knowledgevijñāna - special knowing, comprehension
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Commentaries and Reflections

TKV Desikachar:

“Jñānam is the wisdom of ‘I am that’.
Vijñānam is the discernment that ‘I am not this’ ‘I am not that’.”