Definitions from Wiktionary ( )

▸ verb:  (transitive) (of communication or means of communication: words, statements, signs, etc.) To know the meaning of; to parse or have parsed correctly; to comprehend.
▸ verb:  (transitive) (generally) To know the meaning of.
▸ verb:  (transitive) (of a skill, task, profession, etc.) To be thoroughly familiar with; to be able to undertake properly.
▸ verb:  (transitive, usually with clause as object) To comprehend a fact or principle; to regard or come to regard a belief as such.
▸ verb:  (transitive) (of people) To know the intent, motives or character of; (of events) to know the causes of or reasons for.
▸ verb:  (transitive) To believe, to think one grasps sufficiently despite potentially incomplete knowledge.
▸ verb:  (transitive, grammar) To regard as present when not.
▸ verb:  (humorous, rare, obsolete outside circus, acrobatics) To stand underneath, to support.
▸ verb:  (intransitive) To comprehend or grasp (some particular matter); to have comprehension (in general);

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