IPA: /kənˈtrækʃən/
KK: /kənˈtrækʃən/
A word formed by combining two words and leaving out some letters, often using an apostrophe, or the process of becoming smaller or tighter.
In English, "don't" is a contraction of "do not."
Contraction is formed from "con-" (meaning together) and "tractio" (from "tractus", meaning to pull or draw). The word describes the act of pulling together or shortening something.
Think of 'pulling together' ('con-') to make something shorter ('tractio'). That's how contraction means to shorten.