S: (n) calendar month, month (one of the twelve divisions of the calendar year) "he paid the bill last month"
S: (n) time period, period of time, period (an amount of time) "a time period of 30 years"; "hastened the period of time of his recovery"; "Picasso's blue period"
S: (n) Jewish calendar, Hebrew calendar ((Judaism) the calendar used by the Jews; dates from 3761 BC (the assumed date of the Creation of the world); a lunar year of 354 days is adjusted to the solar year by periodic leap years)