What does “Opportunity knocks but once” mean?

"Opportunity knocks but once" means that there is only one chance to take advantage of an opportunity.

What context can I use the in?

Example

I can't believe he turned down that job offer. Opportunity knocks but once.

Example

You better seize the moment because opportunity knocks but once.

Example

She knew that opportunity knocks but once, so she took a leap of faith

Is “Opportunity knocks but once” an expression, an idiom, or a proverb?

“Opportunity knocks but once” is a proverb. A proverb is a short saying that teaches us something important or gives us advice. Unlike an idiom, it’s easy to understand even if it uses figurative language.

How would I use “Opportunity knocks but once” effectively in context?

You can use "Opportunity knocks but once" to emphasize the importance of seizing opportunities when they arise. It suggests that opportunities are rare and should not be missed. For example, if a friend is hesitant to apply for a job opening, you might say, 'Don't hesitate, opportunity knocks but once. Go for it!'

1Career
I can't believe he turned down that job offer. Opportunity knocks but once.
2Personal Growth
She knew that opportunity knocks but once, so she took a leap of faith.
3Relationships
You better seize the moment because opportunity knocks but once.

Similar phrases to “Opportunity knocks but once”:

Carpe diem

Seize the day; make the most of the present moment

Example

He decided to carpe diem and travel the world before settling down.

Strike while the iron is hot

Take advantage of an opportunity while it is still available

Example

She knew she had to strike while the iron was hot and negotiate a better deal.

Make hay while the sun shines

Take advantage of favorable circumstances while they last

Example

They made hay while the sun shone and completed the project ahead of schedule.

Good things to know:

Where does the phrase “Opportunity knocks but once” come from?

The origin of the phrase "Opportunity knocks but once" is unknown.

Is “Opportunity knocks but once” common in everyday conversation?

Yes, "Opportunity knocks but once" is a well-known proverb, although it may not be used as frequently in everyday conversation as other idioms or phrases. It is often used in more formal or reflective contexts to convey the idea of limited chances and the importance of taking advantage of them.

What tone does “Opportunity knocks but once” have?

"Opportunity knocks but once" conveys a tone of urgency and regret. It highlights the fleeting nature of opportunities and encourages individuals to act decisively.

Can “Opportunity knocks but once” be used in informal and formal settings?

Yes, "Opportunity knocks but once" is a formal phrase that is typically used in more serious or reflective conversations. It is suitable for both informal and formal settings, but it may be more commonly used in writing or speeches rather than casual conversations.

Can it be used by itself, or is it usually part of a sentence?

It is commonly used as part of a sentence to convey its full meaning. For example, 'She knew that opportunity knocks but once, so she took a leap of faith.' However, in informal conversations, people might understand the phrase even if used alone, like saying 'Opportunity knocks but once!' to imply the importance of seizing the moment.

Synonyms & Antonyms

Synonyms

seize the moment
make the most of an opportunity
act now or lose out
grab the chance
don't miss your shot

Antonyms

miss the boat
let an opportunity slip away
fail to capitalize on a chance
waste an opportunity
let a golden opportunity go