1. acquaintance with facts, truths, or principles, as from study or investigation; general erudition: knowledge of many things.
2. familiarity or conversance, as with a particular subject or branch of learning: A knowledge of accounting was necessary for the job.
3. acquaintance or familiarity gained by sight, experience, or report: a knowledge of human nature.
4. the fact or state of knowing; the perception of fact or truth; clear and certain mental apprehension.
"understandings can be knowledge."
"systems can be knowledge."
"rules can be knowledge."
"constraints can be knowledge."
"acquisitions can be knowledge."
This list can help you learn new vocabulary more quickly and be able explore other words more easily.