1. [n]  something that is compiled (as into a single book or file)
2. [n]  a periodical that summarizes the news
3. [v]  arrange and integrate in the mind; "I cannot digest all this information"
4. [v]  convert food into absorbable substances; "I cannot digest milk products"

1. \Di*gest"\, v. t. [imp. & p. p. {Digested}; p. pr. & vb.
   n. {Digesting}.] [L. digestus, p. p. of digerere to separate,
   arrange, dissolve, digest; di- = dis- + gerere to bear,
   carry, wear. See {Jest}.]
   1. To distribute or arrange methodically; to work over and
      classify; to reduce to portions for ready use or
      application; as, to digest the laws, etc.
            Joining them together and digesting them into order.
                                                  --Blair.
            We have cause to be glad that matters are so well
            digested.                             --Shak.
   2. (Physiol.) To separate (the food) in its passage through
      the alimentary canal into the nutritive and nonnutritive
      elements; to prepare, by the action of the digestive
      juices, for conversion into blood; to convert into chyme.
   3. To think over and arrange methodically in the mind; to
      reduce to a plan or method; to receive in the mind and
      consider carefully; to get an understanding of; to
      comprehend.
            Feelingly digest the words you speak in prayer.
                                                  --Sir H.
                                                  Sidney.
            How shall this bosom multiplied digest The senate's
            courtesy?                             --Shak.
   4. To appropriate for strengthening and comfort.
            Grant that we may in such wise hear them [the
            Scriptures], read, mark, learn, and inwardly digest
            them.                                 --Book of
                                                  Common Prayer.
   5. Hence: To bear comfortably or patiently; to be reconciled
      to; to brook.
            I never can digest the loss of most of Origin's
            works.                                --Coleridge.
   6. (Chem.) To soften by heat and moisture; to expose to a
      gentle heat in a boiler or matrass, as a preparation for
      chemical operations.
   7. (Med.) To dispose to suppurate, or generate healthy pus,
      as an ulcer or wound.
   8. To ripen; to mature. [Obs.]
            Well-digested fruits.                 --Jer. Taylor.
   9. To quiet or abate, as anger or grief.
   

2. \Di*gest"\, v. i.
   1. To undergo digestion; as, food digests well or ill.
   2. (Med.) To suppurate; to generate pus, as an ulcer.
   

3. \Di"gest\, n. [L. digestum, pl. digesta, neut., fr.
   digestus, p. p.: cf. F. digeste. See {Digest}, v. t.]
   That which is digested; especially, that which is worked
   over, classified, and arranged under proper heads or titles;
   esp. (Law), A compilation of statutes or decisions
   analytically arranged. The term is applied in a general sense
   to the Pandects of Justinian (see {Pandect}), but is also
   specially given by authors to compilations of laws on
   particular topics; a summary of laws; as, Comyn's Digest; the
   United States Digest.
         A complete digest of Hindu and Mahommedan laws after
         the model of Justinian's celebrated Pandects. --Sir W.
                                                  Jones.
         They made a sort of institute and digest of anarchy,
         called the Rights of Man.                --Burke.
   

A periodical collection of messages which have been posted to a newsgroup or mailing list. A digest is prepared by a moderator who selects articles from the group or list, formats them and adds a contents list. The digest is then either mailed to an alternative mailing list or posted to an alternative newsgroup.

Some news readers and electronic mail programs provide commands to "undigestify" a digest, i.e. to split it up into individual articles which may then be read and saved or discarded separately.