You can use the word charter in a sentence to refer to reserving a plane, boat, bus, or car for private use. Or you can use it as a written grant to an organization or institution.
They are going to charter a boat for their vacation.
The charter was received by the lower houses from the upper house.
He arrived in a charter helicopter. The CEO will charter a plane in the morning.
The mayor commended the young people for their volunteer work at loca hospitals and soup kitchens.
No. Behaviorism is a common noun.
Yes, the word 'there' is a pronoun when used to introduce a sentence as the subject.
Example: There are more people expected. (subject)
The word 'there' is also an adverb and a noun.
We go there every summer. (adverb)
I'm sure I parked over there. (noun)
the boy tried to answer the question but the teacher said it was a paradox