A shortened or contracted form of a word or phrase, used to represent the whole, utilizing omission of letters, and sometimes substitution of letters, or duplication of initial letters to signify plurality, including signs such as +, =, @.
The process of abbreviating.
A notation used in music score to denote a direction, as pp or mf.
First attested 1400–50. From Middle English abbreviacioun, from Middle French abréviation, from Late Latin abbreviātiō, from Latin ad + breviō, from brevis.