What is what does inter mean?

The prefix "inter-" means between, among, or reciprocal. It is commonly used in many English words to indicate the presence of a relationship or interaction between things. For example, "international" refers to things that involve or relate to more than one country, while "interact" refers to the process of two or more things working together. The prefix "inter-" can also imply a sense of mutual action or exchange, as in the words "interchange" or "interconnect".