intergalactic
Intergalactic (adj) means existing or taking place between galaxies. Example: “The film follows an intergalactic war between rival species.”
How to use intergalactic
Learner’s notesIn plain EnglishSpanning or happening between different galaxies, as opposed to "interstellar," which is between stars within one galaxy.
People often use "intergalactic" and "interstellar" interchangeably, but strictly, interstellar means between stars in a galaxy, while intergalactic means between whole galaxies.
Fill the gap
Can you complete this real example?
The film follows an _____ war between rival species.
Etymology
From inter- ("between") plus galactic.