Forming, or consisting of, a large mass; compacted; weighty; heavy; massy., In mass; not necessarily without a crystalline structure, but having no regular form; as, a mineral occurs massive.
Michael Jackson was a massive pop success. Jupiter is the most massive planet. (scientific)
I'm sure it has another meaning but it does mean "Go massive" in French.
Scientifically, massive does not necessarily mean huge, though it does not preclude that meaning either, rather massive implies that the item being described merely has mass.
explain
To explain; to unfold.
of Treaty
It doesn't really explain it as describe it. Think of the universe as sort of the smoke and debris that resulted from a massive explosion.
Interpreting meaning means to explain the meaning of something. For example, you may be asked to explain why a certain character acts the way he or she does, or why they are upset with another character.
Explain the meaning of internal personal communication
the meaning of cells communication is woking together
elaborate
They explain theirselves.