There is no word which means the exact opposite of galaxy.
A galaxy is a massive group of stars and other material, so you might be able to say that the opposite of a galaxy is a single star.
However, this would be similar to saying that the opposite of a group of people is one person - which is not quite correct.
The antonym for universe would be nothing.
A synonym for galaxy could be dust and clouds.
Space or universe
you can't
What is synonym for merchant? What is synonym for merchant?
synonymize
you are a synonym of abandoned.
What is the synonym government.
no it is not a synonym
clusters.
What is synonym for merchant? What is synonym for merchant?
synonymize
What is the synonym government.
you are a synonym of abandoned.
Our galaxy is a barred spiral galaxy.
a synonym to..?
no it is not a synonym
A synonym for varied is diverse.
A synonym for temper is temperament.
there is a synonym of the word synonym it is poecilonym
The Andromeda Galaxy is a spiral galaxy.