quarantine

1. A period of 40 days, particularly (countable, uncountable)
2. The 40-day period during which a widow is entitled to remain in her deceased husband's home while any dower is collected and returned. (countable, uncountable)
3. The 40-day period of isolation required after 1448 at Venice's lazaret to avoid renewed outbreaks of the bubonic plague and identical policies in other locations. (countable, uncountable)
4. A 40-day period formerly imposed by the French king upon warring nobles during which they were forbidden from exacting revenge or continuing to fight. (countable, uncountable)
5. A period, instance, or state of isolation from the general public or from native livestock and flora enacted to prevent the spread of any contagious disease. (countable, uncountable) · The tourists were put in quarantine to ensure none of them would be able to spread the plague.
6. A similar period, instance, or state of rigidly enforced or self-enforced detention or isolation. (countable, figuratively, uncountable)
7. A place where such isolation is enforced, a lazaret. (countable, uncountable)
8. A period of time where people are not allowed to leave their homes to contain the spread of an infectious disease. (colloquial, countable, uncountable)

Plural quarantines