The act of having knowledge or awareness of something.

जानना

English Usage: He is knowing the answers to all the questions.

Hindi Usage: वह सभी प्रश्नों के उत्तर जान रहा है।

The state of being informed or having knowledge.

ज्ञान

English Usage: His knowing of the subject was impressive.

Hindi Usage: विषय का उसका ज्ञान प्रभावशाली था।

Possessing knowledge or awareness.

ज्ञानी

English Usage: She had a knowing look on her face.

Hindi Usage: उसके चेहरे पर एक ज्ञानी नजर थी।