What is the noun form of "Brief"?

The noun form of "Brief" is "Brevity."

"Brief" is an adjective that describes something short or concise. The noun "Brevity" refers to the quality of being brief or concise. Therefore, if you want to express the concept of being brief in a noun form, you would use "Brevity." For example, you might say, "The editor appreciated the brevity of the article."

The other options are not the noun form of "Brief":

• "Briefing" is a gerund (a verb form used as a noun) that refers to the act of giving or receiving information or instructions.

• "Short" is an adjective that is synonymous with "brief" but not the noun form.

• "Briefly" is an adverb, indicating the manner in which an action is performed.