sabbat

As a noun sabbat

is witches' sabbath.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between coven and sabbat

is that coven is a clique that shares common interests or activities while Sabbat is any one of the eight major holy days celebrated in Wicca.

As a noun Sabbat

is any one of the eight major holy days celebrated in Wicca.

As a proper noun Sabbath is

the Biblical seventh day of the week, observed as a day of rest in Judaism, Seventh-day Adventism, or Seventh Day Baptism, starting at sundown on Friday till sundown on Saturday.

As nouns the difference between taxonomy and sabbat

is that taxonomy is the science or the technique used to make a classification while sabbat is witches' sabbath.