noun - (the chemical element of atomic number 30) a bluish-white metal which is used in many kinds of alloys, for example brass, and in galvanizing iron

noun - a heavy, thick-walled cooking pot with a tight-fitting lid, typically made of cast iron or enamelled cast iron, used for slow cooking, braising, or baking

noun - the process by which something becomes fossilized; often used literally for bones or plants turning into fossils, or metaphorically for ideas or behaviors becoming fixed and unchanging

noun, technical - a small, enclosed field used especially for keeping or exercising horses; an enclosed area at a racecourse where horses are paraded, saddled, and mounted before a race

noun - a kitchen utensil in the form of a large pipette with a rubber end that is used for spreading liquid fat or juices on food when cooking

noun - a grammatical structure that is used for actions that happened before another action in the past, the structure is HAD + past participle (had done, hadn't seen etc.)