The parts of a car, boat or bike that let you control which way it goes — the wheel, the column behind it, and everything joining it to the front wheels. You talk about steering as a system, not a single object: 'the steering is very light', 'there is something wrong with the steering', 'power steering' means a system that helps you turn the wheel with less effort. Drivers use it to describe how a car feels: heavy steering takes muscle, light steering turns easily, tight or sharp steering responds quickly. The word is also simply the -ing form of the verb steer, so it can mean the act of steering: 'steering in strong wind is hard work'. And it appears in the fixed phrase 'a steering committee' — a small group that guides a big project or organisation, deciding direction rather than doing the detailed work. That committee sense is common in offices, universities and government, so it is worth learning as a set phrase.