1900s

• IPA^(key): /naɪn.tiːn.ˈhʌn.dɹədz/ ("nineteen hundreds")

1900s (uncountable)

1. The century that began on January 1, 1900, and ended on December 31, 1999. Approximately equal to the twentieth century.
2. The decade that began on January 1, 1900 and ended on December 31, 1909. The noughties.