Main Entry: cer·tain·ty

Pronunciation: \ˈsər-t^ən-tē\

Function: noun

Inflected Form(s): plural cer·tain·ties

Date: 14th century

1 : something that is certain
2 : the quality or state of being certain especially on the basis of evidence

synonyms certainty, certitude, conviction mean a state of being free from doubt. certainty and certitude are very close; certainty may stress the existence of objective proof <claims that cannot be confirmed with scientific certainty>, while certitude may emphasize a faith in something not needing or not capable of proof <believes with certitude in an afterlife>. conviction applies especially to belief strongly held by an individual <holds firm convictions on every issue>.