A height, a name used simply to denote a high place where the Jews worshipped idols (Ezek. 20:29). The plural is translated "high places" in Num. 22:41 and Ezek. 36:2.
an eminence or high place ...
Hitchcock's Bible Names Dictionary
(high place). Found only in (Ezekiel 20:29) applied to places of idolatrous worship. ...
William Smith's Bible Dictionary