The two crossword solutions for the term INTRO TO PHYSICS are ASTRO and META. ASTRO is an abbreviation for astronomy, which is the study of celestial objects such as stars, planets, comets, and galaxies. META is an abbreviation for metaphysics, which is a branch of philosophy that deals with the nature of reality and the relationship between mind and matter. Together, these two terms refer TO an introductory course in PHYSICS, which is the study of matter, energy, and the interactions between them.