I love languages and the origins of words, you can have the same conversation using different words and not reinventing the wheel.
Truck under a piano? Certainly, part of a tram, wagon behind a horse, traction engine or stationary engine can both plough a field and pull a living van, chassis can be a trailer, or be part of the lorry frame, you can crane a heavy load onto a lorry or load a heavy crane onto the same lorry, sack truck, carpet truck, fork truck, railway wagon never trailer, wagon trailer is fine, steam wagon, steam engine, steam lorry, wagon and drag,
Sent from my iPhone using Tapatalk