indexical

In linguistics and in philosophy of language, an indexical behavior or utterance symbolically points to (or indicates) some state of affairs. For example, I refers to whoever is speaking; now refers to the time at which that word is uttered; and here refers to the place of utterance.
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Adjective
1. of or relating to or serving as an index
(pertainym) index, index number, indicant, indicator

(a.)
Of, pertaining to, or like, an index; having the form of an index.
  

a term like 'that,' 'this,' 'now,' 'there,' or 'soon.'  That is, a term whose  meaning
is highly dependent on contxt.  These terms present philosophical difficulties. statements incorporating indexicals are true in some circumstances and not in others.  "There is a book on that table," is true or not depending on the table 'that' stands for.  Indexicals are also called 'deictic expressions.'

indexical /in'deksikəl/
tính từ (thuộc) mục lục; giống như mục lục
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