Abbreviation


An abbreviation (from Latin brevis, meaning short[1]) is a shortened form of a word or phrase, by any method. It may consist of a group of letters or words taken from the full version of the word or phrase; for example, the word abbreviation can itself be represented by the abbreviation abbr., abbrv., or abbrev.; NPO, for nil (or nothing) per (by) os (mouth) is an abbreviated medical instruction. It may also consist of initials only, a mixture of initials and words, or words or letters representing words in another language (for example, e.g., i.e. or RSVP). Some types of abbreviations are acronyms (some pronounceable, some initialism) or grammatical contractions or crasis.

Acronyms, initialisms, contractions and crasis share some semantic and phonetic functions, and all four are connected by the term "abbreviation" in loose parlance.[2]: p167 

A contraction is a reduction in size of a word or phrase made by omitting certain of its letters or syllables. Consequently, contractions are a subset of abbreviations. Often, but not always, the contraction includes the first and last letters or elements. Examples of contractions are "li'l" (for "little"), "I'm" (for "I am"), and "he'd've" (for "he would have").

Abbreviations have a long history, created so that spelling out a whole word could be avoided. This might be done to save time and space, and also to provide secrecy. In both Greece and Rome the reduction of words to single letters was common.[3] In Roman inscriptions, "Words were commonly abbreviated by using the initial letter or letters of words, and most inscriptions have at least one abbreviation". However, "some could have more than one meaning, depending on their context. (For example, ⟨A⟩ can be an abbreviation for many words, such as ager, amicus, annus, as, Aulus, Aurelius, aurum and avus.)"[4]

Abbreviations in English were frequently used from its earliest days. Manuscripts of copies of the old English poem Beowulf used many abbreviations, for example the Tironian et () or & for and, and y for since, so that "not much space is wasted".[5] The standardisation of English in the 15th through 17th centuries included such a growth in the use of abbreviations.[6] At first, abbreviations were sometimes represented with various suspension signs, not only periods. For example, sequences like ‹er› were replaced with ‹ɔ›, as in ‹mastɔ› for master and ‹exacɔbate› for exacerbate. While this may seem trivial, it was symptomatic of an attempt by people manually reproducing academic texts to reduce the copy time.

Mastɔ subwardenɔ y ɔmēde me to you. And wherɔ y wrot to you the last wyke that y trouyde itt good to differrɔ thelectionɔ ovɔ to quīdenaɔ tinitatis y have be thougħt me synɔ that itt woll be thenɔ a bowte mydsomɔ.


Example of 15th-century Latin manuscript text with scribal abbreviations
Sign in New York City subway, reading “Penna.” for Pennsylvania, showing American style of including the period even for contractions.