Columbia subject headings:
Grammar, Comparative and general--Deixis.
Interpersonal communication.
Language and languages--Philosophy.
Modality (Linguistics)
Speech acts (Linguistics)
Harvard subject headings:
Grammar, Comparative and general--Deixis
Modality (Linguistics)
Psycholinguistics.
Princeton subject headings:
Grammar, Comparative and general--Deixis.
Interpersonal communication.
Language and languages--Philosophy.
Modality (Linguistics)
Speech acts (Linguistics)