verb - to move back and forth, form side to side, or up and down (in the air), to fly in this manner

noun - (the chemical element of atomic number 33) a very poisonous semimetal that is sometimes used in insecticides and in some alloys

noun - a piece of tight-fitting underwear that covers the trunk and was worn by women especially in the past

verb - to divide people or things into groups so that the ones with similar characteristics are in the same group

noun - a game in which people have to say words that begin with the last letter of the previous word

verb - to learn what to do in the future because you do not want to make the same mistakes again

noun - the common colourless liquid that comes down from the sky as rain, or is in rivers and seas etc.

verb - to supervise a game and make sure that the players obey the rules (e.g. in tennis, baseball or cricket)

verb - to hit a door with your hand in order to make the people inside open the door for you

noun - a long period of time in history when the temperatures were very low and glaciers spread across the planet

noun - the state in which the nose is producing more mucus than it normally does, esp. because you are ill

noun - a part of a bicycle etc. that is pressed with the foot in order to make the bike move

noun - a light hat that usually has a longer part in the front to shield your eyes against the sun

noun - (Harry Potter) one of the balls in Quidditch the purpose of which is to hit players off their broomsticks

noun - (Harry Potter) the smallest ball used in Quidditch, the seeker who catches it gets 150 points for their team