What is the meaning of conventional names?

Conventional names are names that are commonly used and accepted.

Unconventional names are usually recently invented Words, existing Words newly used as names, or names that sound "weird" to the listener because they are not expected as names.

Bob and Janet are conventional names in the English speaking world, but not in Japan for example.

Moon Unit is an unconventional name in the English speaking world, although it was the legal name of the child of a famous person.