Twentieth - definition of twentieth by The Free Dictionary twentieth (ˈtwɛntɪɪθ) adj (Mathematics) (usually prenominal) a coming after the nineteenth in numbering or counting order, position, time, etc; being the ordinal number of twenty: often written 20th
20th century - Wikipedia The 20th century began on 1 January 1901 (MCMI), and ended on 31 December 2000 (MM) [1][2] It was the 10th and last century in the 2nd millennium and was marked by new models of scientific understanding, unprecedented scopes of warfare, new modes of communication that would operate at nearly instant speeds, and new forms of art and entertainment Population growth was also unprecedented, [3
20st or 20th – Which is Correct? - Two Minute English Check the full word form like “first” or “twentieth” if you’re in doubt Using numbers properly in sentences makes your writing clearer and more professional So next time you’re writing a date or mentioning an anniversary, pause for a second Think about how it sounds, and pick the right suffix