Here's a breakdown:
* Contraction: Combines two or more words by omitting letters and using an apostrophe (e.g., "don't" for "do not").
* Abbreviation: A shortened form of a word or phrase, often using the first letters (e.g., "USA" for "United States of America").
* Clipping: A shortened form of a word where a part of the word is removed (e.g., "phone" for "telephone").
Let me know if you'd like more examples of any of these!