ON (A) LARGE SCALE

Which one is more idiomatic: "on large scale" or "on a large scale"?

'on large scale' doesn't have any meaning in English.

Definition and pronunciation of scale | Oxford Advanced Learners Dictionary
They entertain on a large scale (= they hold expensive parties with a lot of guests).

what about "at full scale" or "at a full scale"?

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Originally Posted by VladKozov

"on large scale" is correct.
"at a full scale" is correct.

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Neither is correct.

Quote:

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Originally Posted by VladKozov

so, correct answer be:

"on a large scale" and "at full scale"?

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"at full scale" is not idiomatic.

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Originally Posted by VladKozov

can something is not idiomatic but correct. so "at full scale" is correct but not idiomatic?

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"At full scale" is meaningless.

I think "at full scale" has meaning when talking about lab experiments, house designs, etc....

So, "on large scale" may also be used in this sense.....

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Originally Posted by EverLivingPoet

I think "at full scale" has meaning when talking about lab experiments, house designs, etc....

So, "on large scale" may also be used in this sense.....

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No, "on large scale" does not mean the same thing as "at full scale."

(And the expression is "on a large scale.")

So, it is "at a full scale"?