Clipping is a morphological process also known as shortening or truncation. This results in words which have been reduced from their original form. English has many examples of clipping.
In final clipping the final part of the word is removed. Examples include bra (brassiere), gas (gasoline) and photo (photograph).
In initial clipping the initial part of the word is removed. Examples include burger (hamburger), gator (alligator) and phone (telephone).
In medial clipping the initial and final parts of the word are removed. Examples include flu (influenza), fridge (refrigerator) and ma'am (madam). In ma'am, the final part of the word is retained, but it can be regarded as medial clipping because the middle of the word is removed.
Clipping is a process which shortens words. It can be classified into three types- final clipping, initial clipping and medial clipping. Of these three the most common is final clipping.