| M | definition | example sentence |
| machinery | several machines, esp. large ones | We'll have to buy a lot of new machinery for the factory. |
| magic | a mysterious power, or a magician's tricks | You don't really believe in the power of magic, do you? |
| mail | letters and parcels sent by post | Who collects your mail while you're away? |
| management | the job of running an organisation or business | Without good management, a company won't last long. |
| mankind | all the people in the world | He says mankind's biggest challenge is global warming. |
| marble | a type of stone used for building | Is this floor really made of Italian marble? |
| mathematics | the study of numbers and shapes | If you want to be an engineer, you'll have to study mathematics. |
| mayonnaise | a thick white sauce eaten with salads | Do you want some mayonnaise on your salad sandwich? |
| measles | a type of disease | His body was covered in red spots, so we thought he had measles. |
| meat | animal or bird flesh eaten as food | Did you buy this meat from our local butcher? |
| metal | a hard substance, like iron or gold | Bicycle frames are usually made of light-weight metal. |
| methane | a colourless gas that's used as a fuel | Is it possible to run a car on methane? |
| milk | the liquid that baby mammals get from their mothers | How many litres of milk do you drink every day? |
| money | what you earn from work, and then spend or save | I'm trying to save enough money to buy a car. |
| mud | soft, wet earth | I fell over and got mud all over my clothes. |
| music | organised sound made for enjoyment | What sort of music do you like? |
| N | definition | example sentence |
| nature | all living things and the habitats that sustain them | The beauty of nature has inspired many artists and poets. |
| news | information about recent events | My dad watches the news on TV every night. |
| nitrogen | one of the gases in our atmosphere (symbol N) | Did you know that you can't see or smell nitrogen? |
| nonsense | anything that isn't true or sensible | You don't believe all that nonsense about ghosts, do you? |
| nurture | the care given to a growing person or animal | Parents are responsible for the nurture of their young. |
| nutrition | food the body needs for health | If we eat for nutrition instead of taste, we'll all be healthier. |