1. makes or becomes tight or tense
Usage: third person singular present tense of ‘tauten’

Examples

• The rope tautens as the weight increases.
• She tautens the guitar string until it produces the right pitch.
• His jaw tautens when he’s angry.
• The sail tautens in the strong wind.
• The muscle tautens under stress.
• The wire tautens between the two posts.