ketahui

Etymology
From.

Verb

 * 1)  to know
 * 2) to perceive the truth or factuality of; to be certain of; to be certain that
 * 3) to be aware of; to be cognizant of
 * 4) to be acquainted or familiar with; to have encountered
 * 5) understand or have a grasp of through experience or study
 * 6) to be able to distinguish, to discern, particularly by contrast or comparison; to recognize the nature of
 * 7) to recognize as the same (as someone or something previously encountered) after an absence or change
 * 8) to have indexed and have information about within one's database