abbreviating

/AH0 B R IY1 V IY0 EY0 T IH0 NG/
verb
  1. 1

    To shorten by omitting parts or details.

  2. 2

    To speak or write in a brief manner.

  3. 3

    To make shorter; to shorten (in time); to abridge; to shorten by ending sooner than planned.

  4. 4

    To reduce a word or phrase by means of contraction or omission to a shorter recognizable form.

  5. 5

    To reduce to lower terms, as a fraction.

Source: https://en.wiktionary.org/wiki/abbreviate, https://en.wiktionary.org/wiki/abbreviating