that is
advEtymology Inherited from Old English þæt is.
1
Conjunctive In other words; that is to say. Used to introduce a clarification or explanation
- The Brazilian population is multiethnic—that is, it has many ethnicities.
- We have never met —not formally, that is.
2 more examples
- Mr. Underwood not only ran The Maycomb Tribune office, he lived in it. That is, above it.1960 July 11, Harper Lee, To Kill a Mockingbird, Philadelphia, Pa.; New York, N.Y.: J[oshua] B[allinger] Lippincott Company, →OCLC:
- Some say history repeats itself, that time is cyclical. Others cling to the notion of progress and change over time. Apparently Nancy Walker marches to a different drummer — marches backwards, that is. Her ideas on art and society seem quaint and odd on the one hand and, on the other, petty and regressive.1981 December 27, Wade Nichols, “Victorian Imperialism”, in Gay Community News, volume 9, number 23, page 5: