Source : Webster's Revised Unabridged Dictionary (1913)

Eat \Eat\ ([=e]t), v. t. [imp. {Ate} ([=a]t; 277), Obsolescent &
   Colloq. {Eat} ([e^]t); p. p. {Eaten} ([=e]t"'n), Obs. or
   Colloq. {Eat} ([e^]t); p. pr. & vb. n. {Eating}.] [OE. eten,
   AS. etan; akin to OS. etan, OFries. eta, D. eten, OHG. ezzan,
   G. essen, Icel. eta, Sw. ["a]ta, Dan. [ae]de, Goth. itan, Ir.
   & Gael. ith, W. ysu, L. edere, Gr. 'e`dein, Skr. ad. [root]6.
   Cf. {Etch}, {Fret} to rub, {Edible}.]
   1. To chew and swallow as food; to devour; -- said especially
      of food not liquid; as, to eat bread. ``To eat grass as
      oxen.'' --Dan. iv. 25.

            They . . . ate the sacrifices of the dead. --Ps.
                                                  cvi. 28.

            The lean . . . did eat up the first seven fat kine.
                                                  --Gen. xli.
                                                  20.

            The lion had not eaten the carcass.   --1 Kings
                                                  xiii. 28.

            With stories told of many a feat, How fairy Mab the
            junkets eat.                          --Milton.

            The island princes overbold Have eat our substance.
                                                  --Tennyson.

            His wretched estate is eaten up with mortgages.
                                                  --Thackeray.

   2. To corrode, as metal, by rust; to consume the flesh, as a
      cancer; to waste or wear away; to destroy gradually; to
      cause to disappear.

   {To eat humble pie}. See under {Humble}.

   {To eat of} (partitive use). ``Eat of the bread that can not
      waste.'' --Keble.

   {To eat one's words}, to retract what one has said. (See the
      Citation under {Blurt}.)

   {To eat out}, to consume completely. ``Eat out the heart and
      comfort of it.'' --Tillotson.

   {To eat the wind out of a vessel} (Naut.), to gain slowly to
      windward of her.

   Syn: To consume; devour; gnaw; corrode.

Eat \Eat\ ([=e]t), v. t. [imp. {Ate} ([=a]t; 277), Obsolescent &
   Colloq. {Eat} ([e^]t); p. p. {Eaten} ([=e]t"'n), Obs. or
   Colloq. {Eat} ([e^]t); p. pr. & vb. n. {Eating}.] [OE. eten,
   AS. etan; akin to OS. etan, OFries. eta, D. eten, OHG. ezzan,
   G. essen, Icel. eta, Sw. ["a]ta, Dan. [ae]de, Goth. itan, Ir.
   & Gael. ith, W. ysu, L. edere, Gr. 'e`dein, Skr. ad. [root]6.
   Cf. {Etch}, {Fret} to rub, {Edible}.]
   1. To chew and swallow as food; to devour; -- said especially
      of food not liquid; as, to eat bread. ``To eat grass as
      oxen.'' --Dan. iv. 25.

            They . . . ate the sacrifices of the dead. --Ps.
                                                  cvi. 28.

            The lean . . . did eat up the first seven fat kine.
                                                  --Gen. xli.
                                                  20.

            The lion had not eaten the carcass.   --1 Kings
                                                  xiii. 28.

            With stories told of many a feat, How fairy Mab the
            junkets eat.                          --Milton.

            The island princes overbold Have eat our substance.
                                                  --Tennyson.

            His wretched estate is eaten up with mortgages.
                                                  --Thackeray.

   2. To corrode, as metal, by rust; to consume the flesh, as a
      cancer; to waste or wear away; to destroy gradually; to
      cause to disappear.

   {To eat humble pie}. See under {Humble}.

   {To eat of} (partitive use). ``Eat of the bread that can not
      waste.'' --Keble.

   {To eat one's words}, to retract what one has said. (See the
      Citation under {Blurt}.)

   {To eat out}, to consume completely. ``Eat out the heart and
      comfort of it.'' --Tillotson.

   {To eat the wind out of a vessel} (Naut.), to gain slowly to
      windward of her.

   Syn: To consume; devour; gnaw; corrode.

Eat \Eat\ ([=e]t), v. t. [imp. {Ate} ([=a]t; 277), Obsolescent &
   Colloq. {Eat} ([e^]t); p. p. {Eaten} ([=e]t"'n), Obs. or
   Colloq. {Eat} ([e^]t); p. pr. & vb. n. {Eating}.] [OE. eten,
   AS. etan; akin to OS. etan, OFries. eta, D. eten, OHG. ezzan,
   G. essen, Icel. eta, Sw. ["a]ta, Dan. [ae]de, Goth. itan, Ir.
   & Gael. ith, W. ysu, L. edere, Gr. 'e`dein, Skr. ad. [root]6.
   Cf. {Etch}, {Fret} to rub, {Edible}.]
   1. To chew and swallow as food; to devour; -- said especially
      of food not liquid; as, to eat bread. ``To eat grass as
      oxen.'' --Dan. iv. 25.

            They . . . ate the sacrifices of the dead. --Ps.
                                                  cvi. 28.

            The lean . . . did eat up the first seven fat kine.
                                                  --Gen. xli.
                                                  20.

            The lion had not eaten the carcass.   --1 Kings
                                                  xiii. 28.

            With stories told of many a feat, How fairy Mab the
            junkets eat.                          --Milton.

            The island princes overbold Have eat our substance.
                                                  --Tennyson.

            His wretched estate is eaten up with mortgages.
                                                  --Thackeray.

   2. To corrode, as metal, by rust; to consume the flesh, as a
      cancer; to waste or wear away; to destroy gradually; to
      cause to disappear.

   {To eat humble pie}. See under {Humble}.

   {To eat of} (partitive use). ``Eat of the bread that can not
      waste.'' --Keble.

   {To eat one's words}, to retract what one has said. (See the
      Citation under {Blurt}.)

   {To eat out}, to consume completely. ``Eat out the heart and
      comfort of it.'' --Tillotson.

   {To eat the wind out of a vessel} (Naut.), to gain slowly to
      windward of her.

   Syn: To consume; devour; gnaw; corrode.

Eat \Eat\, v. i.
   1. To take food; to feed; especially, to take solid, in
      distinction from liquid, food; to board.

            He did eat continually at the king's table. --2 Sam.
                                                  ix. 13.

   2. To taste or relish; as, it eats like tender beef.

   3. To make one's way slowly.

   {To eat}, {To eat in} or {into}, to make way by corrosion; to
      gnaw; to consume. ``A sword laid by, which eats into
      itself.'' --Byron.

   {To eat to windward} (Naut.), to keep the course when
      closehauled with but little steering; -- said of a vessel.

Source : WordNet®

eat
     v 1: take in solid food; "She was eating a banana"; "What did you
          eat for dinner last night?"
     2: eat a meal; take a meal; "We did not eat until 10 P.M.
        because there were so many phone calls"; "I didn't eat
        yet, so I gladly accept your invitation"
     3: take in food; used of animals only; "This dog doesn't eat
        certain kinds of meat"; "What do whales eat?" [syn: {feed}]
     4: use up (resources or materials); "this car consumes a lot of
        gas"; "We exhausted our savings"; "They run through 20
        bottles of wine a week" [syn: {consume}, {eat up}, {use up},
         {deplete}, {exhaust}, {run through}, {wipe out}]
     5: worry or cause anxiety in a persistent way; "What's eating
        you?" [syn: {eat on}]
     6: cause to deteriorate due to the action of water, air, or an
        acid; "The acid corroded the metal"; "The steady dripping
        of water rusted the metal stopper in the sink" [syn: {corrode},
         {rust}]
     [also: {eaten}, {ate}]