As a Noun:
1. The process of making something smaller. English = reduction.
As a Verb or Adjective:
1. To not have enough of something, especially money, for a particular purpose. English = (be) short of, lack.
2. To make an object smaller or an event take less time, especially a word or a phrase shorter by leaving out some of the letters; to make a text shorter by leaving only the important things. English = shorten, reduce, abbreviate; summarise.
3. To last only a short time and/or to be very small in significance or extent. English = (be) brief, (be) limited.
As Modifier:
1. Used at the beginning of a sentence to mean that you will be brief and only give the important points. English = briefly. Idiomatic English = to cut a long story short.