What is first and foremost?

"First and foremost" is an idiomatic expression used to emphasize the primary or most important point among several points being considered. It is commonly used in both written and spoken English to introduce the most significant or foundational aspect of a topic before proceeding with additional details or secondary points. The phrase helps prioritize information, ensuring that the audience understands what should be given the greatest attention or consideration in the discussion. For example, when presenting a project plan, one might say, "First and foremost, we need to secure funding," indicating that this is the most critical step before any other actions can be taken.