What is a word that describes interactions within single state?

There isn't one perfect word that describes *all* interactions within a single state. It depends on what kind of interactions you're talking about. Here are some options depending on the context:

General Interactions:

* Intrastate - This is the most literal and general term, meaning "within the state."

* Domestic - This can be used if you're contrasting it with international interactions.

* Local - This emphasizes the smaller scale of the interactions, but can be ambiguous if the state is large.

Specific Types of Interactions:

* Political: For interactions between government agencies or officials within the state.

* Economic: For business transactions, trade, and economic activity within the state.

* Social: For interactions between individuals or groups within the state, like cultural exchanges or community events.

* Cultural: For interactions related to shared values, beliefs, and practices within the state.

Other possibilities:

* Regional - If you are focusing on interactions within a specific region of the state.

* State-level - This emphasizes the importance of the state government in the interactions.

Ultimately, the best word to use will depend on the specific context and what you want to emphasize.