In North American usage, the terms are roughly synonymous.

The term is roughly synonymous with the term the Greater Middle East.

The roughly synonymous term lackey may have a similar etymology.

In logic and semantics, connotation is roughly synonymous with intension.

Classical test theory may be regarded as roughly synonymous with true score theory.

The relative intrinsic value is roughly synonymous with the ethic ideal.

It is roughly synonymous with "major life change."

The term was roughly synonymous with "top brass," except that it referred more specifically to civilian authorities.

A roughly synonymous term in French baking is levain.

A roughly synonymous term used in French baking is Chef.