The idiom "worth its weight in gold" is used to describe something or someone that is extremely valuable, useful, or important. While it sounds like a financial assessment, it is almost exclusively used figuratively to highlight the high utility or indispensable nature of an object, person, or quality.
The phrase dates back to ancient times when gold was the standard measure of wealth. To say something was worth its literal weight in gold meant it was incredibly expensive. Over centuries, the meaning shifted from a literal price tag to a metaphorical expression of high esteem and practical value.
This expression is neutral to informal. It is common in journalism, business discussions, and everyday conversation, but it might be slightly too clichéd for highly formal academic papers or legal documents.
Avoid using the phrase for things that are physically heavy but low in value, as the imagery becomes confusing. Similarly, using it for something that actually is made of gold is redundant and loses the idiomatic punch.
These examples are sourced from worth its weight in gold on Ludwig.guru.
"Anything that would take a child away from a drug dealer, it's always good, it's worth its weight in gold." — vice.com
"Insurance proved to be worth its weight in gold." — nytimes.com
"(It is) worth its weight in gold to the company," Mr Ashworth said." — bbc.com
"A lavish event like this is worth its weight in gold through the publicity it gains on social networks." — theguardian.com
"This book would have been worth its "weight in gold" if it had been available to me as a novice epidemiologist." — ncbi.nlm.nih.gov
| Phrase | Context |
|---|---|
| invaluable | More formal; used when something is so precious its value cannot be measured. |
| priceless | Common in emotional or sentimental contexts; implies no amount of money can buy it. |
| worth every penny | Informal; specifically emphasizes that the cost was justified by the quality. |
| indispensable | Formal; focuses on the fact that the person or thing is absolutely necessary. |
| a godsend | Informal; used when something valuable arrives unexpectedly or at the perfect time. |
| Expression | Idiomatic Meaning | Register | Avoid In |
|---|---|---|---|
| worth its weight in gold | Extremely valuable or useful | Neutral/Informal | Technical specifications or legal contracts |
While the phrase originated from literal trade, it is almost exclusively used figuratively today to describe non-monetary value. Using it to describe the actual price of a heavy object would be confusing and is generally avoided in modern English usage.
While both denote high value, worth its weight in gold often emphasizes utility and practical benefit, such as a helpful piece of advice. In contrast, "priceless" often refers to emotional or historical significance that transcends any financial calculation.
No, learners often use the wrong preposition, saying worth its weight of gold instead of in gold. To sound natural and adhere to the idiomatic standard, you must always use the preposition "in."
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