Definition of "Neptune"

(astronomy) The eighth planet in our solar system, represented in astronomy and astrology by ♆.  examples

(Roman mythology) The god of the ocean and of earthquakes, equivalent to Poseidon in Greek mythology.

A township in Monmouth County, New Jersey, United States.  examples

An unincorporated community in Mercer County, Ohio.  examples

An unincorporated community in Jackson County, West Virginia.  examples

An unincorporated community in Ithaca, Richland County, Wisconsin.  examples