The noun BETEL NUT has 1 sense: 1. seed of betel palm; chewed with leaves of the betel pepper and lime as a digestive stimulant and narcotic in southeastern Asia.Familiarity information: BETEL NUT used as a noun is very rare.eed of betel palm; chewed with leaves of the betel pepper and lime as a digestive stimulant and narcotic in southeastern Asia.
Princeton's WordNet(2.67 / 3 votes)Rate this definition: 1  repose, quiet, placidity, serenity, tranquillity, tranquility(noun) a disposition free from stress or emotion. 2  tranquillity, tranquility, quiet(noun) an untroubled state; free from disturbances. 3  tranquillity, tranquility, quietness, quietude(noun) a state of peace and quiet.
Insuring domestic tranquility means to maintain peace and order, and keep citizens and their property safe from harm. An example of this would be police officers, who keep â¦ American citizens safe every day.