sound
/saʊnd/
Healthy.
He was safe and sound.
Complete, solid, or secure.
Fred assured me the floorboards were sound.
Having the property of soundness.
Good; acceptable; decent.
"How are you?" - "I'm sound."
(of sleep) Quiet and deep. Sound asleep means sleeping peacefully, often deeply.
Her sleep was sound.
Heavy; laid on with force.
a sound beating
Founded in law; legal; valid; not defective.
a sound title to land