1. An expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing or event meets requirements.
    I need to get an approval on this purchase order.
  2. An expression of favorable acceptance and encouragement; a compliment that also condones.
    Words of approval never seem to come from him.
  3. Something mailed by a seller to a collector to match his stated interests; he can approve of or return the item.

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