B2 [C or S or U] something that is in someone's view: The flowers at the annual flower show were a beautiful sight. You should always keep sight of your bags (= have them where you can see them) while you're at the airport.informal You can't go out in those clothes - you look a real sight (= look untidy or silly)! The child laughed at the sight of (= when she saw) the clockwork toy.formal The lawyer requested sight of (= to see) the papers. I dare not let the children out of my sight (= go where I cannot see them) in this park. The police officer was hidden out of sight (= where he could not be seen) behind a tree. The castle came into sight (= started to be able to be seen) as we went round a bend in the road. We're looking for a house which is within sight of (= from which it is possible to see) the mountains.figurative After three years of campaigning, the end is finally in sight (= will happen soon) for Jon. I caught sight of (= saw for a moment) my former teacher while I was out shopping today, but she turned a corner and I lost sight of (= could no longer see) her. "Do you know David Wilson?" "I haven't met him, but I know him by sight (= I recognize him, but do not know him)."informal She hated/loathed the sight of (= hated) her former husband.informal They used to be very good friends, but now they can't bear/stand the sight of (= hate) each other. The question seemed easy at first sight (= when they first saw it), but when the students tried to answer it, they discovered how difficult it was.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive the sights B1 places of interest, especially to visitors: We spent a fortnight in Rome looking at all the sights.Tourism and holidaysHotels and hostels sight unseen › without seeing something first: I never buy anything sight unseen.Using the eyesEyesight, glasses and lensesThe eye and surrounding areaPerceptive