Learn how to say Contraction correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word contraction:
an instance of contracting or the state of being contracted
(physiology) any normal shortening or tensing of an organ or part, esp of a muscle, e.g. during childbirth
(pathology) any abnormal tightening or shrinking of an organ or part
a shortening of a word or group of words, often marked in written English by an apostrophe ⇒ I’ve come for I have come