nt]
| 1. | the act or state of abating or the state of being abated; reduction; decrease; alleviation; mitigation. |
| 2. | suppression or termination: abatement of a nuisance; noise abatement. |
| 3. | an amount deducted or subtracted, as from the usual price or the full tax. |
| 4. | Law.
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| 5. | Also called rebatement. Heraldry. a charge or mark that, when introduced into a coat of arms, indicates the owner's disgrace. |