Words Starting with ASTRO and Containing O

Browse 72 verified English words starting with ASTRO and containing O, including Astronomical, Astronomy, Astronaut, Astrology, Astronomer, Astrological and Astrologer. Validated against official game lexicons for Scrabble, Wordle, crosswords, and daily writing, explore definitions and letter counts below.

Playing a word game? Score tiles & test blanks
Word Finder
Refine list...
JUMP:
Sort:
Group:
Case:
View:
JUMP TO:
Select any word to view available definitions & photosSelect any word for details
Starts with ASTROB6 words
astrobiology
astrobiologist
astrobiological
astrobiologically
astrobotany
astrobleme
Starts with ASTROC8 words
astrocyte
astrocytoma
astrocytic
astrochemistry
astrochemist
astrochemical
astrochronological
astrocompass
Starts with ASTROD3 words
astrodome
astrodynamics
astrodynamicist
Starts with ASTROF1 words
astrofell
Starts with ASTROG4 words
astrogeologist
astrogation
astrogeology
astrogator
Starts with ASTROH1 words
astrohatch
Starts with ASTROI1 words
astroid
Starts with ASTROL8 words
astrology
astrological
astrologer
astrolabe
astrologist
astrologically
astrologic
astrolatry
Starts with ASTROM7 words
astrometric
astrometry
astromancy
astrometrical
astrometeorology
astrometeorological
astrometeorologist
Starts with ASTRON13 words
astronomical
astronomy
astronaut
astronomer
astronomically
astronautics
astronomic
astronautical
astronavigator
astronautically
astronavigation
astronautic
astronomize
Starts with ASTROP12 words
astrophysics
astrophysicist
astrophysical
astrophotography
astrophotographer
astrophotograph
astrophysically
astrophel
astrophotographic
astrophobia
astrophobic
astrophotometrical
Starts with ASTROS3 words
astrosphere
astrospectroscopic
astrospherecentrosomic
Starts with ASTROT5 words
astroturf
astroturfing
astroturfer
astrotourism
astrotourist

•Browse Words by Letter (A to Z)

Select a starting letter to browse words
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Built for writers, students, and competitive word game players, Wordmom combines an uncluttered English dictionary and thesaurus with fast, pattern-based word finders so you can verify definitions, synonyms, and high-scoring tile plays in one place.
Word Games & Solvers
Word FinderScrabble Word FinderWords With Friends CheatWordle SolverAnagram Solver
Dictionary & Reference
DictionarySynonymsAntonymsWords
Community
Contact UsEditorial PolicyPrivacy PolicyTerms and Conditions
© 2016–2026 Wordmom Network. All rights reserved. Made with for word lovers everywhere.
Disclaimer: SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A. and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. Words With Friends® is a registered trademark of Zynga Inc. Wordle® is a registered trademark of The New York Times Company. Other referenced game titles and tournament lexicon codes (including NASPA NWL and WESPA/HarperCollins CSW) are trademarks of their respective owners. Wordmom is an independent reference utility for educational and entertainment purposes and is not affiliated with, sponsored by, or endorsed by Hasbro, Mattel, Spear, Zynga, The New York Times Company, NASPA, WESPA, or HarperCollins Publishers. All game names are referenced strictly under nominative fair use to indicate compatibility.