Do You Hyphenate 21st Century?
Do You Hyphenate 21st Century? Do you hyphenate 21st century? Centuries conform to the general rule for hyphenating a compound adjective. When it comes before the noun, include century in the hyphenation (in the case of twenty-first century and above). Afterward, do not (CMOS). It is now the twenty-first century. Should 20th century be hyphenated?