The Collaborative International Dictionary of English v.0.48:

aspartame \aspartame\ n.
   1. an artificial sweetener containing an aspartic acid
      peptide, (C14H18N2O5); it is 160 times sweeter than
      sucrose (cane sugar) and is used as a calorie-free
      sweetener. Chemically it is
      N-L-[alpha]-aspartyl-L-phenylalanine-1-methyl ester. It is
      sold also under the trade name Equal.
      [WordNet 1.5]

The Collaborative International Dictionary of English v.0.48:

Equal \E"qual\, a. [L. aequalis, fr. aequus even, equal; akin to
   Skr. ?ka, and perh. to L. unus for older oinos one, E. one.]
   1. Agreeing in quantity, size, quality, degree, value, etc.;
      having the same magnitude, the same value, the same
      degree, etc.; -- applied to number, degree, quantity, and
      intensity, and to any subject which admits of them;
      neither inferior nor superior, greater nor less, better
      nor worse; corresponding; alike; as, equal quantities of
      land, water, etc.; houses of equal size; persons of equal
      stature or talents; commodities of equal value.
      [1913 Webster]

   2. Bearing a suitable relation; of just proportion; having
      competent power, abilities, or means; adequate; as, he is
      not equal to the task.
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            The Scots trusted not their own numbers as equal to
            fight with the English.               --Clarendon.
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            It is not permitted to me to make my commendations
            equal to your merit.                  --Dryden.
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            Whose voice an equal messenger
            Conveyed thy meaning mild.            --Emerson.
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   3. Not variable; equable; uniform; even; as, an equal
      movement. "An equal temper." --Dryden.
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   4. Evenly balanced; not unduly inclining to either side;
      characterized by fairness; unbiased; impartial; equitable;
      just.
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            Are not my ways equal?                --Ezek. xviii.
                                                  29.
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            Thee, O Jove, no equal judge I deem.  --Spenser.
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            Nor think it equal to answer deliberate reason with
            sudden heat and noise.                --Milton.
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   5. Of the same interest or concern; indifferent.
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            They who are not disposed to receive them may let
            them alone or reject them; it is equal to me.
                                                  --Cheyne.
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   6. (Mus.) Intended for voices of one kind only, either all
      male or all female; -- opposed to mixed. [R.]
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   7. (Math.) Exactly agreeing with respect to quantity.
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   Equal temperament. (Mus.) See Temperament.

   Syn: Even; equable; uniform; adequate; proportionate;
        commensurate; fair; just; equitable.
        [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Equal \E"qual\, n.
   1. One not inferior or superior to another; one having the
      same or a similar age, rank, station, office, talents,
      strength, or other quality or condition; an equal quantity
      or number; as, "If equals be taken from equals the
      remainders are equal."
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            Those who were once his equals envy and defame him.
                                                  --Addison.
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   2. State of being equal; equality. [Obs.] --Spenser.
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The Collaborative International Dictionary of English v.0.48:

Equal \E"qual\, v. t. [imp. & p. p. Equaledor Equalled; p.
   pr. & vb. n. Equaling or Equalling.]
   1. To be or become equal to; to have the same quantity, the
      same value, the same degree or rank, or the like, with; to
      be commen?urate with.
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            On me whose all not equals Edward's moiety. --Shak.
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   2. To make equal return to; to recompense fully.
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            Who answered all her cares, and equaled all her
            love.                                 --Dryden.
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   3. To make equal or equal to; to equalize; hence, to compare
      or regard as equals; to put on equality.
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            He would not equal the mind that he found in himself
            to the infinite and incomprehensible. --Berkeley.
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WordNet (r) 3.0 (2006):

equal
    adj 1: having the same quantity, value, or measure as another;
           "on equal terms"; "all men are equal before the law"
           [ant: unequal]
    2: having the requisite qualities or resources to meet a task;
       "she had adequate training"; "her training was adequate";
       "she was adequate to the job"; "he was equal to the task"
       [syn: adequate, equal] [ant: inadequate, unequal]
    n 1: a person who is of equal standing with another in a group
         [syn: peer, equal, match, compeer]
    v 1: be identical or equivalent to; "One dollar equals 1,000
         rubles these days!" [syn: equal, be] [ant: differ]
    2: be equal to in quality or ability; "Nothing can rival cotton
       for durability"; "Your performance doesn't even touch that of
       your colleagues"; "Her persistence and ambition only matches
       that of her parents" [syn: equal, touch, rival,
       match]
    3: make equal, uniform, corresponding, or matching; "let's
       equalize the duties among all employees in this office"; "The
       company matched the discount policy of its competitors" [syn:
       equal, match, equalize, equalise, equate]