Meanings
- abbreviationnot comparableAbbreviation of eighteenth; 18th.
French Architects of the XVIIIth Century.
1900, French Architects and Sculptors of the XVIIIth Century, London: George Bell and Sons, page XIII5 more examples
PICTURES / of / GERMAN LIFE / In the XVIIIᵗʰ and XIXᵗʰ Centuries.
1863, Georgiana Malcolm, transl., Pictures of German Life In the XVIIIth and XIXth Centuries, volume II, London: Chapman and Hall, translation of original by Freytag, GustavThe prince goes to the chief of Naharaina, a land probably unknown to the Egyptians until the Asiatic conquests of the XVIIIth Dynasty had led them to the upper waters of the Euphrates.
1895, Egyptian Tales: XVIIIth to XIXth Dynasty, page 29Nordenskiold: Periplus, reproduces the Chart of the Arctic Ocean (No. II. of our Atlas) on p. 97, and notes (p. 98) that this is a very early map of the North Coast of Asia based on the Great Northern Expedition (1734–42); no official and complete atlas faithfully rendering the observations of this Expedition was published during the XVIIIth cent.
1940, Printed Books of the XVth to the XVIIIth Century, Many Illustrated with Woodcuts Or Engravings, page 12XVIIIth INTERNATIONAL CONGRESS ON ELECTROCARDIOLOGY, 1991
1992, Józef Jagielski, Mirosław Górnicki, editors, Electrocardiology '91: Proceedings of the XVIIIth International Congress on Electrocardiology: Warsaw, Poland, 24 – 26 August 1991, World Scientific, →ISBN, page IVWe believe that this work was produced in Flanders in the XVIIIᵗʰ century imitating the style that prevailed there during the first quarter of the previous century.
2001, Angel Miguel Navarro, Flemish and Dutch Masters (from the XVIth to the XVIIIth Century) at the National Museum of Fine Arts, →ISBN, page 46Synonyms: 18th, eighteenth
Synonyms & antonyms
Origin
From XVIII (Roman numeral representing eighteen) + -th (ordinal suffix).
Full word history & related roots →Cite this entry
XVIIIth. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/XVIIIth
“XVIIIth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/XVIIIth. Accessed November 3, 2026.
WatkinsX Dictionary, s.v. “XVIIIth,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/XVIIIth.
Source: XVIIIth on Wiktionary, CC BY-SA 4.0.