Princeton's WordNet

1. galaxy(noun)

   a splendid assemblage (especially of famous people)

2. galax, galaxy, wandflower, beetleweed, coltsfoot, Galax urceolata(noun)

   tufted evergreen perennial herb having spikes of tiny white flowers and glossy green round to heart-shaped leaves that become coppery to maroon or purplish in fall

3. galaxy, extragalactic nebula(noun)

   (astronomy) a collection of star systems; any of the billions of systems each having many stars and nebulae and dust

   "`extragalactic nebula' is a former name for `galaxy'"

Kernerman English Learner's Dictionary

1. galaxy(noun)ˈgæl ək si

   a large group of planets and stars

   other stars in our galaxy

Wiktionary

1. galaxy(Noun)

   The Milky Way; the apparent band of concentrated stars which appears in the night sky over earth.

2. galaxy(Noun)

   Any of the collections of many millions of stars, galactic dust, black holes, etc. existing as independent and coherent systems, of which there are billions in the known universe.

3. Galaxy(ProperNoun)

   the Milky Way Galaxy, from when it was thought the Universe (our universe) had only one galaxy

Origin: From galaxie, from galaxias, from γαλαξίας, from γάλα.

Webster Dictionary

1. Galaxy(noun)

   the Milky Way; that luminous tract, or belt, which is seen at night stretching across the heavens, and which is composed of innumerable stars, so distant and blended as to be distinguishable only with the telescope. The term has recently been used for remote clusters of stars

2. Galaxy(noun)

   a splendid assemblage of persons or things

The Nuttall Encyclopedia

1. Galaxy

   the Milky Way, a band of light seen after sunset across the heavens, consisting of an innumerable multitude of stars, or suns rather, stretching away into the depths of space.

• sterrestelselAfrikaans
• مِجَرَّهArabic
• галактикаBulgarian
• galáxiaPortuguese (BR)
• galaxieCzech
• die GalaxieGerman
• galakseDanish
• γαλαξίαςGreek
• galaxiaSpanish
• galaktikaEstonian
• کهکشانFarsi
• galaksiFinnish
• galaxieFrench
• גָלַקסִיָהHebrew
• आकाश गंगाHindi
• sazviježđeCroatian
• tejút(rendszer)Hungarian
• galaksiIndonesian
• vetrarbraut, stjörnuþokaIcelandic
• galassiaItalian
• 銀河Japanese
• 성운, 은하Korean
• galaktikaLithuanian
• galaktikaLatvian
• galaksiMalay
• melkwegDutch
• galakseNorwegian
• galaktykaPolish
• کهکشانPersian
• كهكشان،Pashto
• galáxiaPortuguese
• galaxieRomanian
• созвездиеRussian
• galaxiaSlovak
• galaksijaSlovenian
• galaksijaSerbian
• galaxSwedish
• กลุ่มดาวกาแล็กซีThai
• galaksi, yıldız kümesi, gökadaTurkish
• 星系Chinese (Trad.)
• плеядаUkrainian
• کہکشاںUrdu
• thiên hàVietnamese
• 星系Chinese (Simp.)