As a Noun: 1. Your ability to see; your ability to see clearly. English = eyesight, sight; vision. 2. A person who has seen an event and can therefore describe it, for example in a law court. English = eyewitness, witness. 3. Something which you see which causes you to believe that something is true or has really happened. English = evidence, proof. As a Verb or Adjective: 1. To see something with both your eyes, clearly, distinctly and unmistakably; to see for oneself; to see with one's own eyes. 2. To be able to see and not blind. English = (be) sighted. 3. To see an event and be able to describe it and confirm that it happened. English = eyewitness, witness. 4. To create a picture in your mind of or about something; to relate to the eyes, sight or vision. English = visualise; (be) visual.