1. abib - Noun
2. Abib - Proper noun
The first month of the Jewish ecclesiastical year, corresponding nearly to our April. After the Babylonish captivity this month was called Nisan.
Source: Webster's dictionaryIn 2009, for example, Nisan 15 on the Jewish calendar used by Rabbinic Judaism corresponds to April 9. On the calendars used by Karaites and Samaritans, Abib or Aviv 15 (as opposed to 'Nisan') corresponds to April 11 in 2009. Source: Internet