What is the meaning of understanding?

noun

• The cognitive condition of someone who understands.
  • usage: "he has virtually no understanding of social cause and effect"
  • synonyms: apprehension, discernment, savvy
• The statement (oral or written) of an exchange of promises.
  • usage: "they had an agreement that they would not interfere in each other's business"; "there was an understanding between management and the workers"
  • synonyms: agreement
• An inclination to support or be loyal to or to agree with an opinion.
  • usage: "his sympathies were always with the underdog"; "I knew I could count on his understanding"
  • synonyms: sympathy
• The capacity for rational thought or inference or discrimination.
  • usage: "we are told that man is endowed with reason and capable of distinguishing good from evil"
  • synonyms: reason, intellect

verb

• Know and comprehend the nature or meaning of.
  • usage: "She did not understand her husband"; "I understand what she means"
  • synonyms: understand
• Perceive (an idea or situation) mentally.
  • usage: "Now I see"; "I just can't see your point"; "Does she realize how important this decision is"; "I don't understand the idea"
  • synonyms: understand, realize, realise, see
• Make sense of a language.
  • usage: "She understands French"; "Can you read Greek"
  • synonyms: understand, read, interpret, translate
• Believe to be the case.
  • usage: "I understand you have no previous experience"
  • synonyms: understand, infer
• Be understanding of.
  • usage: "You don't need to explain-I understand"
  • synonyms: sympathize, sympathise, empathize, empathise, understand

adjective

• Characterized by understanding based on comprehension and discernment and empathy.
  • usage: "an understanding friend"