Couples Hinge Across: From parallel two faced lines: Do a Couples Hinge, then center couples in the line of eight do a Trade and finally all do another Couples Hinge. Finishes in parallel two faced lines. Equivalent to Couples Circulate.
Single Hinge Across: From box formation: Single Hinge, then centers in the wave Trade and all do another Single Hinge. Finishes in box formation. Equivalent to Box Circulate.
NOTE: A directional call.
John Cronin 1976
This definition is from The Handbook of Modern Square Dancing by Jay King.
It is provided here for informational and educational purposes only.