The phrase “as sound as a dollar” is an idiom that describes something as being secure, dependable, or well-constructed. It reflects trustworthiness or stability, much like how the U.S. dollar was historically viewed as a symbol of financial stability.


Meaning of “as sound as a dollar”

1. Secure and dependable

When used in this sense, the phrase conveys reliability or trustworthiness in financial or non-financial contexts.

Example:

“This investment is as sound as a dollar.

2. Sturdy and Well-Constructed

It can also refer to the structural integrity of objects, implying that something is solid and in good condition.

Example:

“This house is as sound as a dollar.”


Origins and usage of “as sound as a dollar”

The idiom originates from the historical perception of the U.S. dollar as a stable and reliable currency. Over time, it became a metaphor for anything dependable or strong, extending beyond financial contexts.


Synonyms of “as sound as a dollar”

Here are some alternative expressions with similar meanings:

As solid as a rock

“This company is as solid as a rock.”

Dependable

“You can trust him; he’s dependable.”

Built to last

“That car is truly built to last.”


The idiom “as sound as a dollar” is a versatile expression that signifies reliability and stability, whether referring to investments, people, or physical structures. Its roots in financial security make it a useful phrase in both literal and metaphorical contexts.

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