What is contractions words

A contraction is shortened form of one or two words. In a contraction, as apostrophe takes the place of the missing letter or letters. Some contractions are: I'm (I am), can't (cannot), how's (how is), Isn't (is not), could've (could have) and They're (they are).

A contraction is a shortened version of the written and spoken forms of a word, syllable, or word group.