Definitions

 

Abbreviation

A shortened form of a word or phrase.

 

Acronym

A group of initial letters used as an abbreviation for a name or expression, each letter or part being pronounced separately; an initialism (such as ATM, TLS).

 

Initialism

The use of initials; a significative group of initial letters. Now spec. a group of initial letters used as an abbreviation for a name or expression, each letter or part being pronounced separately (contrasted with acronym n.).

 

Contraction

Grammar, Phonetics, etc. The action of contracting or shortening (a word, a syllable, etc.) by omitting or combining some elements, or, in writing, by substituting a single symbol for a number of letters.