Tranquility is deep calm and quiet. The tranquility of the lake, disturb the tranquility, seek tranquility.
Britain spells it tranquillity with two l's and America with one, and both are correct in their own place. The Sea of Tranquility is where Apollo 11 landed, and it is a plain of hardened lava rather than any kind of sea.
1nountranquilityDeep calm and quiet.
“After the noise of the city, we enjoyed the tranquility of the mountain lake.”
tranquility is a calm.
Also accepted in games: tranquillity
Practised in Word Building