discussion meaning
EN
[dɪsˈkʌʃən] [dɪsˈkʊʃən] [dɪˈskʌʃən] 
US FR discussion 
- NounPLdiscussionsPREdis-SUF-ion
- Conversation or debate concerning a particular topic.
- There was then a long discussion of whether to capitalize words like "east".
- This topic is not open to discussion.
- Text giving further detail on a subject.
- Under each heading, you will find a discussion section.
- Conversation or debate concerning a particular topic.
- More Examples
- Used in the Middle of Sentence
- At the lexicography club, we welcome all discussion of words and whatnot.
- If my memory serves me right, we had a similar discussion a few months ago.
- Please disclude me from further discussions on this topic.
- Used in the Ending of Sentence
- The meeting finally broke up after a three-hour discussion.
- I am not going to argue with you, and I am not going to take sides in this discussion.
- Used in the Middle of Sentence
Definition of discussion in English Dictionary
- Part-of-Speech Hierarchy
- Nouns
- Countable nouns
- Countable nouns
- Nouns
- fr discussion
- en discussions
- fr discussions
- en discussional
- en discussionlike
Source: Wiktionary
Grammatically, this word "discussion" is a noun, more specifically, a countable noun.