abbreviation

nouns

a shortened form of a word or phrase
is derived from
is a type of (narrower)
the phonological or orthographic sound or appearance of a word that can be used to describe or identify something
"the inflected forms of a word can be represented by a stem and a list of inflections to be attached"
shortening something by omitting parts of it
is a type of (narrower)
act of decreasing in length
"the dress needs shortening"