I just wrote down an expression that sounded perfectly natural to me (a native English speaker):
The room contained teems of people.
but now I am second-guessing myself and wondering if I am making a malapropism due to the homonym with "teams".
To avoid that, I considered the following sentence:
The kitchen sink contained teems of ants.
That sounds natural to me too, even though "teams of ants" would strike me as odd.
However, when I look up teems in various dictionaries, it is only recorded as a verb, not a noun.
Am I using this term incorrectly when I use it as a noun?