the most fundamental considerations; essentials; realities (usually used in the phrase get down to brass tacks).
(informal) basic realities; hard facts (esp in the phrase get down to brass tacks)
articles made of brass. Historical Examples Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 Various Mary Louise and the Liberty Girls Edith Van Dyne (AKA L. Frank Baum) The Trail of the Hawk Sinclair Lewis Encyclopaedia Britannica, 11th Edition, Volume 17, Slice 4 Various The Egyptian Cat Mystery Harold Leland Goodwin
a charge to cover the costs of coining money.
(Gyula Halász) 1899–1984, French photographer, born in Hungary. Contemporary Examples Revealing The Unseen Picasso Justin Jones November 2, 2014 noun real name Gyula Halész. 1899–1984, French photographer, artist, and writer, born in Hungary: noted for his photographs of Paris by night