vigentennial
American
[vahy-jen-ten-ee-uhl]
/ ˌvaɪ dʒɛnˈtɛn i əl /
noun
-
a 20th anniversary.
-
a celebration, meeting, reunion, etc., commemorating such an anniversary.
Etymology
Origin of vigentennial
< Latin vīgēn ( ī ) twenty each + (cen)tennial
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.