an abusive attack on a person's character or good name
a disparaging remark; "in the 19th century any reference to female sexuality was considered a vile aspersion"; "it is difficult for a woman to understand a man's sensitivity to any slur on his virility"
the fundamental assumptions from which something is begun or developed or calculated or explained; "the whole argument rested on a basis of conjecture"
the most important or necessary part of something; "the basis of this drink is orange juice"