Read the dictionary definition of brief. All definitions for this word.
1. a condensed written summary or abstract
2. a document stating the facts and points of law of a client's case
3. give essential information to someone
1. The reporters were briefed about the President's plan to invade
4. concise and succinct
1. covered the matter in a brief statement
5. (of clothing) very short
1. an abbreviated swimsuit
2. a brief bikini
6. of short duration or distance
1. a brief stay in the country
See also:
Merriam-Webster definition of brief