showing or suggesting that one has knowledge or awareness that is secret or known to only a few people

a knowing smile

done in full awareness or consciousness

a knowing breach of the order by the appellants

the state of being aware or informed

be aware of through observation, inquiry, or information

most people know that CFCs can damage the ozone layer

I know what I'm doing

have developed a relationship with (someone) through meeting and spending time with them; be familiar or friendly with

he knew and respected Laura

have sexual intercourse with (someone)