briefing meaning
ENFR briefing 
- NounPLbriefingsSUF-ing
- A short and concise summary of a situation.
- The president received a briefing on the situation before going to the press conference.
- A presentation of information or instruction; the meeting at which it is presented.
- Today's briefing of the press.
- A short and concise summary of a situation.
- Verb
Definition of briefing in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Verbs
- Verb forms
- Participles
- Present participles
- Present participles
- Participles
- Verb forms
- Nouns
- fr briefing
- en briefings
- fr briefings
- en briefing note
Source: Wiktionary
Grammatically, this word "briefing" is a noun, more specifically, a countable noun. It's also a verb, more specifically, a verb form.