Is there a word called has?

"Has" is not a word on its own. It is a verb, specifically the third-person singular present tense form of the verb "to have."

For example:

* She has a cat.

* The dog has a bone.

* The house has a large garden.

However, "has" can be used in conjunction with other words to create a phrase. For instance:

* Has been (present perfect tense)

* Has to (meaning "must")

* Has not (negative form of "has")