button ✅ Noun: A small disk or knob sewn onto a garment, used for fastening. Noun: A mechanical device on a machine or instrument that is pressed to operate it. Noun: An electrical switch operated by pressing. operate ❌ Time-up (3 mistakes) Verb: To perform a work or labour; to exert power or strength, physical or mechanical; to act. Verb: To perform a surgical procedure. Verb: To control the functioning of a machine, process, or system. economy ✅ Noun: The study of money, currency and trade, and the efficient use of resources. Noun: The wealth and resources of a country or region, especially in terms of the production and consumption of goods and services. Adjective: Cheap to run; using minimal resources; representing good value for money.