of the kind or quality used in commerce; average or inferior
connected with or engaged in or sponsored by or used in commerce or commercial enterprises
a commercially sponsored ad on radio or television
of the kind or quality used in commerce; average or inferior
a body of students who are taught together
a relative position or degree of value in a graded group
the gradient of a slope or road or other surface
assign a rank or rating to
level to the right gradient
a number or letter indicating quality (especially of a student's performance)
