Abbreviation :  (noun)
1: a shortened form of a word or phrase
2: shortening something by omitting parts of it

abbreviature, abrege, abridgment, abstract, apocope, aposiopesis, astriction, astringency, blue-penciling, bottleneck, bowdlerization, brief, cancellation, capsule, censoring, censorship, cervix, circumscription, clipping, coarctation, compactedness, compaction, compend, compression, compressure, concentration, condensation, condensed version, consolidation, conspectus, constriction, constringency, contraction, contracture, crasis, curtailment, cutting, decrease, deletion, digest, diminuendo, draft, editing, elision, ellipsis, epitome, erasure, expurgation, foreshortening, head, hourglass, hourglass figure, isthmus, knitting, narrow place, narrowing, neck, omission, outline, overview, pandect, precis, pruning, puckering, pursing, recap, recapitulation, reduction, retrenchment, review, rubric, shortened version, shortening, skeleton, sketch, solidification, stranglement, strangulation, striction, stricture, striking, summary, summation, survey, syllabus, syncope, syneresis, synopsis, systole, telescoping, thumbnail sketch, topical outline, truncation, wasp waist, wrinkling,