Writing Tip 144: Regard vs. Regards

Regarding “regards” or “regard,” remember that the singular form of “regard” is proper in phrases such as “with regard to,” “in regard to,” and similar forms. This seems to be a loose rule these days, since it’s found incorrect so often—even in edited material—but if you’re looking for a straight right-and-wrong answer, there you go.
The plural form of “regards,” is correct in signatures and sign-offs such as “best regards” or “warmest regards.” It’s also the proper form when you’re “giving your regards”—to Broadway or anyone else.
This was a great question that came in recently, and I’ve appreciated the recent messages on grammar notes. If anyone has any other word usage quandries, let me know!