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Use "contractions" in a sentence
"Ending sentences with prepositions or with contractions is not inherently ungrammatical and should not be made into a hard-and-fast grammar rule."
"Concomitant with the onset of uterine contractions is the development of contractions of the orgasmic platform in the outer third of the vagina."
"The avoidance of contractions is probably due to the general preference for formal language in medieval settings; this preference arises because only formal texts have made it down to us now."