verb - to change the positions or functions of two things so that each thing has the function or position that the other one had

noun - the list of the most important parts of an essay etc. (esp. one that you should make before you write the actual essay)

verb - to throw things up into the air and catch them so that there are more things in the air at the same time

noun - a loop tied at the end of a rope and as you pull at the rope, the loop will get smaller and tighter

noun, American English - a small space at the front of the car opposite the front seats where you can put small things (e.g. gloves, wallet etc.)

noun - a country in Western Asia, located at the northern tip of the Arabian Peninsula, bordered by Iraq, Saudi Arabia and the Persian Gulf

noun - one of the two upper chambers that receive blood returning to the heart, allowing it to flow into the ventricles for further circulation

noun - the act of making two or more things happen at the same time or work together in the same rhythm, speed, or order

noun - a small space at the front of the car opposite the front seats where you can put small things (e.g. gloves, wallet etc.)

noun - the part of the body of most animals (dogs, cats, monkeys, fish etc.) that grows at the back and can be usually moved

noun - a tube-like structure that carries urine from the kidneys to the bladder, allowing it to be stored until it's eliminated from the body

noun - the money that is paid so that a person who is accused of a crime can be free until the day of the trial

noun - a verb that belongs to the group of verbs that do not form the past tense and past participle by using the ending -ED

noun - unwanted information about the plot or the ending of a film, book etc., especially something that ruins the fun of reading or watching it