Sentence word

A sentence word (also called a one-word sentence) is a single word that forms a full sentence.

Henry Sweet described sentence words as 'an area under one's control' and gave words such as "Come!", "John!", "Alas!", "Yes." and "No." as examples of sentence words. The Dutch linguist J. M. Hoogvliet described sentence words as "volzinwoorden". They were also noted in 1891 by Georg von der Gabelentz, whose observations were extensively elaborated by Hoogvliet in 1903; he does not list "Yes." and "No." as sentence words. Wegener called sentence words "Wortsätze".