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Pronunciation varies by accent · noun
The lee face of a sand dune where the surface is at the angle of repose for sand (33–35°)..
Use slipface when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Slipface means The lee face of a sand dune where the surface is at the angle of repose for sand (33–35°)..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Use slipface where its definition matches the intended context.
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