to be sound asleep

to be sound in limb and wind

sound and fury

He sounded a touch upset on the phone

Sounds good to me!

Sounds fun, but I’m not available.

It sounds to me from what you have said that ...

Sounds good!

Sounds great!

to soup up

to go sour

source of livelihood

sourpuss

to go south

to be a southerner

southpaw

southwards

to sow one’s wild oats

As ye sow, so shall ye reap.

to sow discontent

Space out taking the tablets

In space cometh grace.

to be spaced out

spadework

spaghetti