Once
/wʌns/
Definitions
3 meaningsAt a time in the past; in the past.
/wʌns/
At one time; formerly.
She once lived in Paris.
💡 Simply: Imagine someone tells you, "I used to be really good at playing basketball." When would you use the word once? Once means at a time in the past. You might say, "Oh, you were *once* really good?" So, it's like a moment in time, but no longer.
👶 For kids: It means something happened a long, long time ago.
More Examples
This park was once a swamp.
Once upon a time, there was a princess.
How It's Used
"He was once a famous actor."
"The city was once a Roman settlement."
One single time; on one occasion or instance.
/wʌns/
One time; on one occasion.
Do it once and then you can rest.
💡 Simply: Imagine doing something *just* one time. Like, 'I only want to eat pizza *once* a week,' meaning you only want to eat pizza one time during the week.
👶 For kids: It means just one time.
More Examples
You only need to apply this cream once a day.
I've been to Italy only once.
How It's Used
"I'll call him once the meeting is over."
"Stir the mixture once."
At or on the occasion that; as soon as.
/wʌns/
As soon as; when.
Once you learn the rules, the game is easy.
💡 Simply: If you're waiting for something to happen, you can say, ' *Once* the sun goes down, we can light the fire.' It's like saying, as soon as something happens, another thing can happen. It introduces a condition.
👶 For kids: It means when something happens, then something else can happen.
More Examples
Once the timer beeps, take the cookies out.
Once I finish this book, I'll start another one.
How It's Used
"Once you start, don't stop."
"Once the rain stops, we can go outside."
Idioms & expressions
once in a blue moon
very rarely; not often.
"I only go to the cinema once in a blue moon."
once and for all
Definitely and completely; finally.
"I'm going to tell him once and for all that I'm not interested."
From Middle English *ones, from Old English *ānes, genitive of ān (“one”).
The word has been used in a similar way for centuries, originating in Old English.
Memory tip
Think of it as "one time ago."
Word Origin
"one, a single time"