To sympathize; condole.
To offer condolences jointly with; express sympathy with.
To feel or express compassion or sympathy for (someone or something).
To stand underneath, to support.
To believe, to think one grasps sufficiently despite potentially incomplete knowledge.
To grasp a concept fully in one's mind, especially (of words, statements, art, etc.) to be aware of the meaning of and (of people) to be aware of the intent of.