understand

1. (of communication or means of communication: words, statements, signs, etc.) To know the meaning of; to parse or have parsed correctly; to comprehend.
2. (of communication or means of communication: words, statements, signs, etc.) To know the meaning of; to parse or have parsed correctly; to comprehend.
3. (of a skill, task, profession, etc.) To be thoroughly familiar with; to be able to undertake properly.
4. To comprehend a fact or principle; to regard or come to regard a belief as such.
5. (of people) To know the intent, motives or character of; (of events) to know the causes of or reasons for.
6. To believe, to think one grasps sufficiently despite potentially incomplete knowledge.
7. To regard as present when not.
8. To stand underneath, to support.
9. To comprehend or grasp (some particular matter); to have comprehension (in general);