The Collaborative International Dictionary of English v.0.48:

Heal \Heal\ (h[=e]l), v. i.
   To grow sound; to return to a sound state; as, the limb
   heals, or the wound heals; -- sometimes with up or over; as,
   it will heal up, or over.
   [1913 Webster]

         Those wounds heal ill that men do give themselves.
                                                  --Shak.
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The Collaborative International Dictionary of English v.0.48:

Heal \Heal\ (h[=e]l), v. t. [See Hele.]
   To cover, as a roof, with tiles, slate, lead, or the like.
   [Obs.]
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Heal \Heal\, n. [AS. h[=ae]lu, h[=ae]l. See Heal, v. t.]
   Health. [Obs.] --Chaucer.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

Heal \Heal\, v. t. [imp. & p. p. Healed (h[=e]ld); p. pr. &
   vb. n. Healing.] [OE. helen, h[ae]len, AS. h[=ae]lan, fr.
   h[=a]l hale, sound, whole; akin to OS. h[=e]lian, D. heelen,
   G. heilen, Goth. hailjan. See Whole.]
   1. To make hale, sound, or whole; to cure of a disease,
      wound, or other derangement; to restore to soundness or
      health.
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            Speak the word only, and my servant shall be healed.
                                                  --Matt. viii.
                                                  8.
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   2. To remove or subdue; to cause to pass away; to cure; --
      said of a disease or a wound.
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            I will heal their backsliding.        --Hos. xiv. 4.
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   3. To restore to original purity or integrity.
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            Thus saith the Lord, I have healed these waters. --2
                                                  Kings ii. 21.
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   4. To reconcile, as a breach or difference; to make whole; to
      free from guilt; as, to heal dissensions.
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WordNet (r) 3.0 (2006):

heal
    v 1: heal or recover; "My broken leg is mending" [syn: mend,
         heal]
    2: get healthy again; "The wound is healing slowly"
    3: provide a cure for, make healthy again; "The treatment cured
       the boy's acne"; "The quack pretended to heal patients but
       never managed to" [syn: bring around, cure, heal]