The Commens Dictionary
Quote from ‘Letters to Lady Welby’
In regard to its relation to its signified interpretant, a sign is either a Rheme, a Dicent, or an Argument. This corresponds to the old division Term, Proposition, & Argument, modified so as to be applicable to signs generally. [—] A proposition as I use that term, is a dicent symbol. A dicent is not an assertion, but is a sign capable of being asserted. But an assertion is a dicent. [—] I define a dicent as a sign represented in its signified interpretant as if it were in a Real Relation to its Object. (Or as being so, if it is asserted.)
‘Dicisign’ (pub. 17.04.13-20:00). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from http://www.commens.org/dictionary/entry/quote-letters-lady-welby-19.