What is a collective noun for group of teachers?

There isn't a single, widely accepted collective noun for a group of teachers.

However, here are some options you could use, depending on the context:

Formal:

* Faculty - This is the most common and formal term, often used in academic settings.

* Staff - A more general term, often used in schools or institutions.

Informal:

* A gaggle of teachers - This is playful and informal, emphasizing the potential for chatter and energy.

* A hive of teachers - This suggests a busy and organized group, working together towards a common goal.

* A team of teachers - This emphasizes the collaborative nature of the group.

You can also use a more descriptive phrase based on the specific situation, like "a group of dedicated teachers" or "a collection of passionate educators."