[philo23]

I guess some could argue that we do have some special vocabulary for cars too.

E.g. you don't call it the front/back door, you call it the bonnet/boot (or maybe hood/trunk depending where you're from) though that probably is stretching the definition of a door a little bit... but then you also have nearside and offside for passengers/drivers side, though that's probably a bit more of a technical term.

[HPsquared]

I always get confused by nearside and offside. Is it "near to the driver" or "near to the roadside"?

[beardyw]

Near the roadside.

[TeMPOraL]

> though that probably is stretching the definition of a door a little bit...

It is, but then so is the stupid "3-door" / "5-door" / etc. car classification, which is really 2-door / 4-door / etc. with the trunk being counted as additional door for some reason.

[garaetjjte]

I think it makes sense for hatchbacks, where there's no real trunk/passenger cabin separation.

[vel0city]

The trunk is considered a door when it opens into the main cabin instead of a separate compartment.