Your understanding might be that your mother will always drive you to school if you miss the bus. The meaning of understanding is a mental grasp : Or about how something works:
Bharatloan
Understanding is a relation between the knower and an object of understanding. Knowledge about a subject, situation, etc. He noted bond's apparent lack of.
Understanding a concept means you get it.
How to use understanding in a sentence. Comprehension usually used with of. Both comprehension and understanding can be used to talk about someone's ability to understand something. Understanding implies abilities and dispositions with respect to an object.