a 'collective noun' [=a noun like “team” or “flock” that refers to a group of people or things]
The next round of 'collective bargaining' is scheduled for September.
the group of languages known 'collectively' as Romance languages
(..) - There's no glass. - Force field. There's more I have to tell you. Come on. Are you ready? - Who are you? - I am the Borg. That is a contradiction. The Borg have a collective consciousness. There are no individuals. I am the beginning, the end, the one who is many. I am the Borg. Greetings. I am curious, do you control the Borg collective? You imply disparity where none exists. I am the collective. I'll rephrase the question. I wish to understand their hierarchy. Are you their leader? I bring order to chaos. A cryptic response. (..)1996 Star Trek: First Contact