noun - a huge crowd of people, especially a violent one

noun - the centre of something, the part in the centre

adjective - more important than other things of the same kind

noun - the name of the company that produces certain goods

noun - a small sheet of paper that gives certain information

noun - a part of the body that cleans the blood

noun - the soft parts on the outside of the mouth

noun - a substance of the same kind as water etc.

noun - the black material in the centre of a pencil

noun - hot melted rock that comes out of a volcano

noun - a kind of school where you can study languages

noun - (trademark) special boots fitted with rows of small wheels

noun - a platform made of logs that floats on water

noun - a deep loud sound like that of a lion

noun - a change of system (in politics, industry, agriculture, etc.)