is tautening

• present progressive

  present progressive

  Used to describe an ongoing action or state that is currently taking place in the immediate present.

  of tauten (3rd person singular).
  tauten

  verb (used with or without object)

  to make or become taut.

More Suggestions

• air-hardening
• fastening
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• shortening
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• threatening
• life-threatening
• air hardening