(v) :
to have an intuitiveunderstanding of; to know (something) without having to think (such as knowing the number of objects in a collection without needing to count them); to fully and completely understand something in all its details and intricacies
(v) :
to have an intuitiveunderstanding of; to know (something) without having to think (such as knowing the number of objects in a collection without needing to count them); to fully and completely understand something in all its details and intricacies