[v] know and comprehend the nature or meaning of; "She did not understand her husband"; "I understand what she means"
[v] perceive mentally, as of an idea; "Now I see!"; "I just can't see your point"; "Does she realize how important this decision is?"; "I don't understand the idea"
[v] believe to be the case; "I understand you have no previous experience?"
[v] make sense of a language; "She understands French"; "Can you read Greek?"
[v] be understanding of; "You don't need to explain--I understand!"