adjective
briefer; -est
lasting only a short period of time
using only a few words
of clothing :covering less of the body than is usual
noun
plural briefs
[count] :a brief statement or report
[count] US law :a document that states the facts a lawyer plans to use in a court case
[count] chiefly Brit :instructions that explain what a person is supposed to do
briefs [plural] :short underpants for men, women, or children that fit close to the body
see color picture - compare boxer shorts
[count] Brit informal :lawyer
in brief
in a few words
verb
briefs; briefed; briefing
[+ obj] :to give information or instructions to (someone)