verb - an offer to fight or compete against somebody

noun - a long line of metal rings connected to each other

noun - actions that are performed at an important event, e.g. a wedding, a funeral etc.

noun - the central and most important part of a computer

noun - a long small insect with many little legs

noun - a white powder used in building houses etc., it becomes hard when it is mixed with water and then it dries up

noun - a large musical instrument that looks like a violin and makes a very deep sound

noun - a vegetable with a large white head made of little flowers

noun - a worm with short legs that exists as an early stage in the life of a butterfly or other insects

noun - a hook or another thing that can catch

noun - something or somebody that has been caught

noun - the gases surrounding a planet

noun - a book with maps

noun - a scientist who studies the stars

noun - a person who travels into space