Cognise
Part of speech: verb
Definition: To know, perceive, or become aware of.
Know
Part of speech: noun
Definition: knowledge
Part of speech: verb
Definition: To be certain or sure about.To be acquainted or familiar with; to have encountered.To have knowledge of; to have memorised information, data, or facts about.To understand (a subject).To have sexual relations with.To be informed about.To be aware of (a person's) intentions.To experience.
Example sentence: Of all men's miseries the bitterest is this: to know so much and to have control over nothing.