(Judaism, usually with 'the') The 49-day period from the second day of Passover to Pentecost, begun and ended with an offering of a sheaf of barley and noted nightly during evening prayer.

(biblical) A masculine name included within a Biblical genealogy as a descendant of Esau at Genesis 36:11.

(Judaism) The counting of the omer, that is, the period of 49 days between Passover and Shavuot.

(historical units of measure) A former small Hebrew unit of dry volume equal to about 2.3 L or 2.1 quarts. / A vessel of one omer. / (Judaism) The sheaf of barley offered on the second day of Passover.

plural of omer

plural of omertà

Alternative spelling of omertà

(crime) A code of silence amongst members of a criminal organization (especially the Mafia) that forbids divulging insider secrets to law enforcement, often also followed outside of the organization in fear of retaliation; extensively, any code of silence.

plural of omerta