noun, technical - a large, rectangular building block made from a mixture of concrete and industrial cinders, typically hollow and used in construction for walls and foundations

noun, British English - (trademark) a plastic or rubber mattress that is filled with air and is used as a bed when camping or for floating on water

noun - a root vegetable used as food, usually in vegetable soups etc., it has a very strong flavor and can be eaten raw or cooked

adjective - made of the hard material that is used for making parts of cars or other machines, or smaller things like knives and spoons etc.

noun - a tense that is used for actions that happen regularly, are generally true etc. In questions and negatives we use DO / DOES / DON'T / DOESN'T

noun - a root vegetable used as food, usually in vegetable soups etc., it has a very strong flavor and can be eaten raw or cooked

noun - a small soft bag, usually made of cloth, leather, or plastic, used for carrying small objects, or for holding a small amount of something

noun, American English - (the chemical element of atomic number 13) a very light, silvery grey metal, it is used in construction, packaging (wrapping foil etc.), transportation etc.

noun - (the chemical element of atomic number 13) a very light, silvery grey metal, it is used in construction, packaging (wrapping foil etc.), transportation etc.