Concepts 

Search: all: name: def: POS: version:
4906 total
name POS version def example status simulations
reason noun an explanation of why or how something has happened.
rebel noun someone who fights against those in charge.
receipt noun v1 a written or printed piece of paper that shows you have received and paid for something.
receive verb to take something given or sent to you. She received lots of presents for her birthday
recent adjective v1 not long ago. A recent storm.
recipe noun v1 instructions that tell you how to make and cook food, or how to make a drink. recipe book
recite verb to say aloud something that you have learned by heart.
reckon verb to suppose or think something. What do you reckon that is?
recognize verb to see someone or something and know who they are or what it is. He recognized his friend’s bike because of the red bags.
record verb to store sounds or pictures, on tape, film, record, compact disc (CD), or digital versatile/ video disc (DVD). Recording a song.
record noun a round plastic disc with tiny grooves in the surface, on which sounds are recorded.
recorder noun a small wooden or plastic wind instrument that you blow into. The air is forced out through holes, which you cover with your fingers to make different sounds.
recover verb to get better after being ill.
recreation noun the things we like to do in our spare time, such as playing sports and having hobbies.
recruit noun a new member of an organization or group.
rectangle noun v1 a flat four-sided shape with four right angles in its corners jtoy
recycle verb to use things again, often by turning garbage into new products. Glass, plastics, paper, and metal can all be recycled. materials for recycling
red noun v1 a color.
reduce verb to make something smaller in size or amount. The store reduced the price of hats by half
reed noun a tall plant with a long, stiff, straight stem that grows in wet areas. Reeds are used to make house roofs and paper.
reef noun a raised, narrow ridge of rock, sand, or coral, just above or below the surface of the sea. coral reef
referee noun someone who watches over a game or contest to see that people play by the rules.
reference adjective providing information. The reference book was full of interesting facts.
refinery noun a large factory where natural substances are processed into other products. Oil is made into gasoline at a refinery. oil refinery
reflect verb v1 to throw back light, heat, or sound that has come from somewhere else. Shiny surfaces reflect light.
refrigerator noun a machine that keeps food and beverages cool and fresh. A refrigerator is sometimes called a fridge for short.
refugee noun someone who leaves their home and belongings and escapes to another place, usually because he or she is in danger.
refuse verb to say that you will not do something. He refused to give her the ball.
region noun v1 an area or district of a country. A mountain region.
regret verb to be sorry or sad about something that has happened. He regretted being angry with his sister.