single in Wingdings is ⬧︎♓︎■︎♑︎●︎♏︎

To take the irrregular gait called single-foot;- said of ahorse. See Single-foot.Many very fleet horses, when overdriven, adopt a disagreeable gait,which seems to be a cross between a pace and a trot, in which the twolegs of one side are raised almost but not quite, simultaneously.Such horses are said to single, or to be single-footed. W. S. Clark.