There are names for the number 0 in English and related concepts, and there are concomitant names for the decades whose tens column contains the number 0. The names for the number 0 include "zero", "cipher", "null", "naught", "nought", "love", "duck", "nil", "zilch", "zip", (the letter) "o" (often spelled "oh"), "aught", and "ought". There are various subtleties of usage amongst them all.