why is it that you shut UP but quiet DOWN?

Good question! Here's a try.

You shut up because one is yapping away and one's mouth is open while continously talking.So you bring your jaw up? Guess so.

You quiet down because one is supposed to LOWER the volume of your voice.

Thats funny

SHUT down!

quiet UP.

you can also shut down and quiet up

when you start shouting, your lower jaw drops open most often, so you gotta shut up, likewise when you want to quiet down, i guess you will have to sink your head so that your upper jaw comes down to meet your lower jaw... so you quiet down...oh my god...this is a cracker...ROTFL LMAO...i think i need to calm down a bit now....

sumtimes my bro says up shut! hahaha isnt that random? LOL

anyway...

theres HEAPS of stuff kinda like that, "why" questions, i find them soooo mind boggling!

lol

The same reason you type it up, and write it down.

because if you quiet up, then your voice should be increasing but we really want it to decrease.

I don't know, but WOOO HOOO! Level 6:-)

That's the way they said it was.. and we believed it.. but who do blame?.. us for accepting it or them for teaching it..?

it seems not much different in meanings.