Usage of Know
To indicate the possession of knowledge, understanding, or awareness about something or someone.
Know vs. No – What’s the difference?
In English language, “Know” and “no” are two words which are similar in pronunciation but have different meanings and usage. “Know” is a verb that signifies having knowledge or familiarity with something or someone. On the other hand, “no” is an adverb or determiner that expresses negation, denial, or refusal.