understands

verb

1. To grasp a concept fully and thoroughly, especially (of words, statements, art, etc.) to be aware of the meaning of and (of people) to be aware of the intent of.“I'm sorry. I don't understand.”
2. To believe, to think one grasps sufficiently despite potentially incomplete knowledge.“I understand that you have a package for me?”
3. (obsolete outside circus, acrobatics) To stand underneath, to support.