Words Starting with PENTA and Containing O

Browse 32 verified English words starting with PENTA and containing O, including Pentathlon, Pentatonic, Pentagonal, Pentalogy, Pentanoic, Pentanol and Pentapolis. 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 PENTAC3 words
pentachlorophenol
pentachord
pentacrinoid
Starts with PENTAD3 words
pentadactylous
pentadodecahedron
pentadelphous
Starts with PENTAG4 words
pentagon
pentagonal
pentagonally
pentagynous
Starts with PENTAH1 words
pentahedron
Starts with PENTAL1 words
pentalogy
Starts with PENTAM2 words
pentamerous
pentamethylenetetrazol
Starts with PENTAN4 words
pentanoic
pentanol
pentanoate
pentandrous
Starts with PENTAP7 words
pentapolis
pentaploidy
pentaploid
pentapody
pentapolitan
pentapodic
pentaphylacaceous
Starts with PENTAS1 words
pentastichous
Starts with PENTAT5 words
pentathlon
pentatonic
pentatonicism
pentatomic
pentatriacontane
Starts with PENTAZ1 words
pentazocine

•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.