If the computed confusion score between the specified search character and the specified alphabet character is below the confusion threshold for this paragraph, then return false (i.e. this pair is NOT considered confusable). Otherwise return true (i.e. this pair IS considered confusable). This method assumes that the character keys in the associated font correspond to Unicode code point values.

If the computed confusion score between the specified search character key and the specified alphabet character key is below the confusion threshold for this paragraph, then return false (i.e. this pair is NOT considered confusable). Otherwise return true (i.e. this pair IS considered confusable).