Knowledge

used to refer to the practice of providing information only to those who absolutely require that specific information to perform their tasks or duties effectively

I can't give you all the details of the project, but I'll share what you need to know on a need-to-know basis.

used to indicate one's complete knowledge or understanding of something

The engineer understands the construction plans for this bridge back to front.

to have very good knowledge or understanding about someone or something

After years of studying this topic, I know it inside out.

to know something so perfectly that one can do it at anytime without having to focus or think

She knows the piano piece down pat; she can play it flawlessly.

in a state of being informed and knowledgeable about a particular topic or situation

After attending the training, she was up to speed on the new software.

a complete set of facts or details about how something is done or how it works

As a lawyer, she knows the ins and outs of the legal system.

to take advantage of the understanding and discoveries of influential figures who have been through the same or similar intellectual progress

Today's scientists stand on the shoulders of giants like Newton, Galileo, and Einstein.

some pieces of information or knowledge that may be useful or relevant at a later time

She knows a thing or two about gardening, so ask her for advice on planting flowers.

to be well-informed about a particular situation, to the point where one is able to determine the outcome

She's been working in this company for years, so she really knows the score when it comes to office politics.

the knowledge or experience that is crucial for one to survive or succeed in urban environments

She may not have a college degree, but she's got street smarts that help her succeed in any situation.