First Known Use: before 12th century
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Neptune
noun Nep·tune \ˈnep-ˌtün, -ˌtyün\
: the planet that is eighth in order from the sun
Full Definition of NEPTUNE
2
: the planet eighth in order from the sun — see planet table
— Nep·tu·ni·an \nep-ˈtü-nē-ən, -ˈtyü-\ adjective
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Origin of NEPTUNE
Latin Neptunus
Rhymes with NEPTUNE
aswoon, attune, baboon, balloon, bassoon, blue moon, buffoon, Calhoun, Cancún, cardoon, cartoon, cocoon, commune, doubloon, dragoon, festoon, fine-tune, forenoon, full moon, gaboon, gadroon, galloon, Gudrun, half-moon, harpoon, high noon, immune, impugn, jargoon, jejune, Kowloon, Kunlun, lagoon, lampoon, lardoon, Maine coon, maroon, monsoon, new moon, oppugn, Pashtun, patroon, platoon, poltroon, pontoon, premune, puccoon, quadroon, ratoon, repugn, rough-hewn, saloon, Sassoon, shalloon, soupspoon, spittoon, spontoon, teaspoon, tribune, triune, tuchun, tycoon, typhoon, untune, Walloon
NEPTUNE Defined for Kids
Neptune
noun Nep·tune \ˈnep-ˌtün, -ˌtyün\
Definition of NEPTUNE for Kids
: the planet that is eighth in order of distance from the sun and has a diameter of about 31,000 miles (50,000 kilometers)
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