abbreviate

American Heritage® Dictionary of the English Language, Fourth Edition

1. v. To make shorter. See Synonyms at shorten.
2. v. To reduce (a word or phrase) to a shorter form intended to represent the full form.

Century Dictionary and Cyclopedia

1. To make briefer; abridge; make shorter by contraction or omission of a part: as, to abbreviate a writing or a word.
2. In mathematics, to reduce to the lowest terms, as fractions. Synonyms To shorten, curtail, abridge, epitomize, reduce, compress, condense, cut down.
3. To practise or use abbreviation.
4. Abbreviated.
5. n. An abridgment; an abstract.

Wiktionary

1. v. To make shorter; to shorten; to abridge; to reduce by means of contraction or omission, especially of words written or spoken.
2. v. To reduce to lower terms, as a fraction.
3. adj. Abbreviated; abridged; shortened.
4. adj. Having one part relatively shorter than another or than the ordinary type.
5. n. An abridgment.
6. v. To make shorter; to shorten; to abridge; to reduce by means of contraction or omission, especially of words written or spoken.
7. v. To reduce to lower terms, as a fraction.
8. adj. Abbreviated; abridged; shortened.
9. adj. Having one part relatively shorter than another or than the ordinary type.
10. n. An abridgment.

GNU Webster's 1913

1. v. To make briefer; to shorten; to abridge; to reduce by contraction or omission, especially of words written or spoken.
2. v. To reduce to lower terms, as a fraction.
3. adj. Abbreviated; abridged; shortened.
4. adj. Having one part relatively shorter than another or than the ordinary type.
5. n. An abridgment.

WordNet 3.0

1. v. shorten.
2. v. reduce in scope while retaining essential elements