necessary (needed to have or do in order to make a situation possible): No experience is necessary for this job. Oxygen is necessary for life on earth. essential (extremely necessary and important): It is essential to prepare for the exam. vital (essential for something to succeed or exist): Vitamins and minerals are vital …
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monitor (to regularly check or watch over a period of time in order to find out what is happening): The nurse will monitor his heart rate. observe formal (to watch someone or something carefully and attentively): The police were observing his movements. watch (to look at attentively over a period of …
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lake (a large area of water surrounded by land): This lake is dangerous for swimmers. lagoon (an area of water that is separated from the sea by a reef or sandbar): The water in the lagoon was calm. pond (a small area of fresh water formed naturally or created artificially): …
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joke (to say something to make people laugh, usually something that is not true): They laughed and joked during the meal. Don’t be upset; I was only joking. kid informal, spoken (to make a joke, or say things that are not serious or true): Relax guys, I was only kidding. jest …
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intend (to have in your mind as a plan or purpose): I didn’t intend to hurt anybody. plan (to decide on or make arrangements for something you want to do in the future): We are planning a trip to the mountains. mean (to intend to do or make something …
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