WEIGHING A LOT › Heavy objects weigh a lot: heavy bags heavy machinery/equipment
HOW MUCH › used to say how much someone or something weighs: How heavy are you? Oxygen is sixteen times heavier than hydrogen.
A LOT › large in amount or degree: heavy traffic heavy costs
a heavy drinker/smoker › someone who drinks/smokes a lot
heavy snow/rain › when a lot of snow/rain falls
FORCE › using a lot of force: a heavy blow heavy breathing
SERIOUS informal › serious: The discussion got a bit too heavy.
heavy going mainly UK › too serious or difficult: I found the book very heavy going.