What is the difference between coordinate and subordinate conjunctions

Coordinating Conjunctions links two or more words, clauses, phrases or sentences of equal importance. Subordinating Conjunction are the words that links a dependent clause to an independent clause.

Some examples of such subordinating conjunctions are once, while, when, whenever, where, wherever, before, and after.
What is the difference between subordinating and coordinating?

Coordination and subordination are two ways of combining sentences. Coordination means combining two sentences or ideas that are of equal value. Subordination means combining two sentences or ideas in a way that makes one more important than the other.
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