indexical

Etymology

index + -ical

adj

1. Of, pertaining to, or like, an index; having the form of an index.
2. (linguistics, philosophy) Having or imparting a meaning, or signifying a referent, that changes according to context.
   In order that they might represent the worlds of experience and imagination, such symbols have to be put together with ‘indexical’ signs, as Peirce termed them, such as articles (the, some), demonstratives (this, those), tense-inflections (walk-s, walk-ed), moods (may/might walk, shall/should walk) etc. 2012, Michael Silverstein, “The [] walked down the street”, in London Review of Books, volume 34, number 21

noun

1. (linguistics, philosophy) An indexical term.
   So even with indexicals, there is a Sinn for every meaning. August 15, 2007, Wayne A. Davis, “Replies to Green, Szabó, Jeshion, and Siebel”, in Philosophical Studies, volume 137, number 3, →DOI