To lower in value or social position.
To reduce in altitude or magnitude, as hills and mountains; to wear down.
To reduce in quality or purity.
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.