To know why or how something happens or. To know the meaning of something that someone says: Understand and comprehend are very often interchangeable.
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To grasp the significance or importance of: Understanding is a psychological process related to an abstract or physical object, such as a person, situation, or message whereby one is able to use. Understand is the most general and can apply to a range of situations or degrees of perception:
[~ + object] he doesn't understand responsibility.[no object] a child doesn't understand about death.
Understand, comprehend, appreciate mean to have a clear or complete idea of.
