Quarantine means keeping a person, an animal or a thing apart from others for a while, so that an illness or a pest can't spread. The word comes from an Italian phrase meaning "forty days".
What Does Quarantine Mean?
If you put something in quarantine, you keep it separate until it's safe. Doctors do it for people, farmers do it for animals, and airports do it for plants and pets arriving from far away.
The new fish spent a week in quarantine before they met the others.
It's also a verb: you can quarantine something. And in a joke, you can quarantine anything you want to keep away from everyone else, like a very smelly gym bag.
Here's the odd part: today a quarantine does not last forty days. It lasts as long as it needs to. The number only survives in the word.
🔊 Pronunciation
KWOR-un-teen
The stress is on the first part. It starts like the word quarter: KWOR. The end sounds like the word teen.
🗣️ Natural Examples
The new fish spent a week in quarantine before meeting the rest of the tank.
Some animals must stay in quarantine when they arrive in a new country.
Dad quarantined my gym bag in the garage.
My sister put her slime in quarantine after it escaped the jar.
The farm asked visitors to wipe their boots, because the new lambs were still in quarantine.
🛠️ How to Use It
Quarantine is a common word in news, science and everyday talk, and it's also fine in jokes.
- As a noun: in quarantine, go into quarantine, come out of quarantine.
- As a verb: quarantine something, or the passive be quarantined. The new plants were quarantined for two weeks.
- It isn't tied to a number of days. You can say a short quarantine or a long quarantine.
🤝 Common Word Partners
- in quarantine
- go into quarantine
- come out of quarantine
- a quarantine period
- quarantine rules
- be quarantined
🌳 Word Family
- quarantine (noun): the time or place of being kept apart. The fish are in quarantine.
- quarantine (verb): to keep something apart. We quarantined the new plants.
- quarantined (adjective): kept apart. A quarantined ship.
👯 Similar and Related Words
- isolate: to keep one person or thing apart. It's a general word, and quarantine is the usual choice when illness or pests are the worry.
- separate: to put apart. It's the everyday word with no health meaning.
- lazaretto: an old word for a place where people and goods were kept apart. It came into English from Italian.
⚠️ Common Mistakes
Is quarantine always forty days? No. The word remembers forty, but the rule doesn't.
❌ A quarantine always lasts forty days.
✅ The word comes from "forty", but a quarantine lasts as long as it needs to.
Spelling. There is a U after the Q, and an A in the middle.
❌ quarentine, qurantine
✅ quarantine
Pronunciation. The ending is -teen.
❌ KWOR-un-tine
✅ KWOR-un-teen
💬 In a Conversation
Sam: Quarantine comes from the Italian word for "forty".
Mia: So it lasts forty days?
Sam: Not any more. It lasts as long as it needs to.
Mia: Good. My gym bag needs about forty years.
🕵️ Where Does It Come From?
English took quarantine from the Italian phrase quaranta giorni, which means "forty days".
The idea began in 1377 in the city of Ragusa (today's Dubrovnik, in Croatia). A serious illness was spreading, so visitors from affected places had to wait thirty days before they were allowed in. That wait was called a trentino, from the Italian word for "thirty".
Over the next few decades, similar rules in other cities stretched to forty days, and the name followed. Nobody knows for sure why thirty became forty.
So the word remembers a number that nobody needs to count any more.
💡 The OddLingo Trick
Whenever you hear quarantine, hear quaranta. That's the Italian word for forty.
Then remember the ending of the story: the number stayed in the word, but the rule moved on. A quarantine is over when it's safe, not when someone has counted to forty.