To lower, as in condition in life, office, rank, etc., so as to cause pain or hurt feelings; to degrade, to depress, to humble, to humiliate.
To place lower in position.
to reduce the official estimate of a storm's intensity.
To reduce in complexity, or remove unnecessary parts; to dumb down.
To revert software back to an older version.
To disparage.
A reduction of a rating, as a financial or credit rating.
A downhill gradient on a road or railway.