Tautens is a verb which means to make something tight or tense. There are several synonyms for this word such as tighten, strengthen, stiffen, brace, tighten up, secure, taut, and firm. Each of these words carries a slightly different meaning, but all refer to the act of making something more tense or rigid. For example, tighten suggests making something more secure or snug, whereas stiffen implies making something harder or more difficult to bend. Using these synonyms in place of tautens can add variety and nuance to your writing, helping you to better convey your ideas and create a more engaging text.