The difference between Common and Neuter

Common as an adjective:

Mutual; shared by more than one.

Common as an adjective:

Occurring or happening regularly or frequently; usual.

Common as an adjective:

Found in large numbers or in a large quantity.

Common as an adjective:

Simple, ordinary or vulgar.

Common as an adjective (grammar):

In some languages, particularly Germanic languages, of the gender originating from the coalescence of the masculine and feminine categories of nouns.

Common as an adjective (grammar):

Of or pertaining to common nouns as opposed to proper nouns.

Common as an adjective:

Vernacular, referring to the name of a kind of plant or animal, i.e., common name vs. scientific name.

Common as an adjective (obsolete):

Profane; polluted.

Common as an adjective (obsolete):

Given to lewd habits; prostitute.

Common as a noun:

Mutual good, shared by more than one.

Common as a noun:

A tract of land in common ownership; common land.

Common as a noun:

The people; the community.

Common as a noun (legal):

The right of taking a profit in the land of another, in common either with the owner or with other persons; so called from the community of interest which arises between the claimant of the right and the owner of the soil, or between the claimants and other commoners entitled to the same right.

Common as a verb (obsolete):

To communicate (something).

Common as a verb (obsolete):

To converse, talk.

Common as a verb (obsolete):

To have sex.

Common as a verb (obsolete):

To participate.

Common as a verb (obsolete):

To have a joint right with others in common ground.

Common as a verb (obsolete):

To board together; to eat at a table in common.

Neuter as an adjective (now, uncommon):

Neutral; on neither side; neither one thing nor another.

Neuter as an adjective (grammar):

Having a form which is not masculine nor feminine; or having a form which is not of common gender.

Neuter as an adjective (grammar):

Intransitive.

Neuter as an adjective (biology):

Sexless: having no or imperfectly developed sex organs.

Neuter as an adjective (literary):

Sexless, nonsexual.

Neuter as a noun (biology):

An organism, either vegetable or animal, which at its maturity has no generative organs, or but imperfectly developed ones, as a plant without stamens or pistils, as the garden Hydrangea; especially, one of the imperfectly developed females of certain social insects, as of the ant and the common honeybee, which perform the labors of the community, and are called workers.

Neuter as a noun:

A person who takes no part in a contest; someone remaining neutral.

Neuter as a noun (grammar):

The neuter gender.

Neuter as a noun (grammar):

A noun of the neuter gender; any one of those words which have the terminations usually found in neuter words.

Neuter as a noun (grammar):

An intransitive verb or state-of-being verb.

Neuter as a verb:

To remove sex organs from an animal to prevent it from having offspring; to castrate or spay, particularly as applied to domestic animals.

Neuter as a verb:

To rid of sexuality.

Neuter as a verb:

To drastically reduce the effectiveness of something.