IPA: /ˈtɔːtnəs/
KK: /tɔt.nəs/
The state of being stretched tight or firm without any slack.
The tautness of the rope ensured that the tent remained stable in the wind.
Tautness → It is formed from "taut" (from Old English "tawt", meaning tight or stretched) and the suffix "-ness" (meaning the state or quality of). The word "tautness" refers to the state of being tight or stretched.
Think of something that is 'tight' ('taut') and the '-ness' that indicates a state. This helps you remember that tautness means the quality of being tight.