The Collaborative International Dictionary of English v.0.48:

Sacrifice \Sac"ri*fice\ (?; 277), v. t. [imp. & p. p.
   Sacrificed; p. pr. & vb. n. Sacrificing.] [From
   Sacrifice, n.: cf. F. sacrifier, L. sacrificare; sacer
   sacred, holy + -ficare (only in comp.) to make. See -fy.]
   1. To make an offering of; to consecrate or present to a
      divinity by way of expiation or propitiation, or as a
      token acknowledgment or thanksgiving; to immolate on the
      altar of God, in order to atone for sin, to procure favor,
      or to express thankfulness; as, to sacrifice an ox or a
      sheep.
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            Oft sacrificing bullock, lamb, or kid. --Milton.
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   2. Hence, to destroy, surrender, or suffer to be lost, for
      the sake of obtaining something; to give up in favor of a
      higher or more imperative object or duty; to devote, with
      loss or suffering.
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            Condemned to sacrifice his childish years
            To babbling ignorance, and to empty fears. --Prior.
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            The Baronet had sacrificed a large sum . . . for the
            sake of . . . making this boy his heir. --G. Eliot.
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   3. To destroy; to kill. --Johnson.
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   4. To sell at a price less than the cost or the actual value.
      [Tradesmen's Cant]
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The Collaborative International Dictionary of English v.0.48:

Sacrifice \Sac"ri*fice\ (?; 277), n. [OE. sacrifise, sacrifice,
   F. sacrifice, fr. L. sacrificium; sacer sacred + facere to
   make. See Sacred, and Fact.]
   1. The offering of anything to God, or to a god; consecratory
      rite.
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            Great pomp, and sacrifice, and praises loud,
            To Dagon.                             --Milton.
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   2. Anything consecrated and offered to God, or to a divinity;
      an immolated victim, or an offering of any kind, laid upon
      an altar, or otherwise presented in the way of religious
      thanksgiving, atonement, or conciliation.
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            Moloch, horrid king, besmeared with blood
            Of human sacrifice.                   --Milton.
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            My life, if thou preserv'st my life,
            Thy sacrifice shall be.               --Addison.
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   3. Destruction or surrender of anything for the sake of
      something else; devotion of some desirable object in
      behalf of a higher object, or to a claim deemed more
      pressing; hence, also, the thing so devoted or given up;
      as, the sacrifice of interest to pleasure, or of pleasure
      to interest.
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   4. A sale at a price less than the cost or the actual value.
      [Tradesmen's Cant]
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   Burnt sacrifice. See Burnt offering, under Burnt.

   Sacrifice hit (Baseball), in batting, a hit of such a kind
      that the batter loses his chance of tallying, but enables
      one or more who are on bases to get home or gain a base.
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The Collaborative International Dictionary of English v.0.48:

Sacrifice \Sac"ri*fice\, v. i.
   To make offerings to God, or to a deity, of things consumed
   on the altar; to offer sacrifice.
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         O teacher, some great mischief hath befallen
         To that meek man, who well had sacrificed. --Milton.
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WordNet (r) 3.0 (2006):

sacrifice
    n 1: the act of losing or surrendering something as a penalty
         for a mistake or fault or failure to perform etc. [syn:
         forfeit, forfeiture, sacrifice]
    2: personnel that are sacrificed (e.g., surrendered or lost in
       order to gain an objective)
    3: a loss entailed by giving up or selling something at less
       than its value; "he had to sell his car at a considerable
       sacrifice"
    4: the act of killing (an animal or person) in order to
       propitiate a deity [syn: sacrifice, ritual killing]
    5: (baseball) an out that advances the base runners
    v 1: endure the loss of; "He gave his life for his children"; "I
         gave two sons to the war" [syn: sacrifice, give]
    2: kill or destroy; "The animals were sacrificed after the
       experiment"; "The general had to sacrifice several soldiers
       to save the regiment"
    3: sell at a loss
    4: make a sacrifice of; in religious rituals