Words Starting With "OS" - Word Finder

The following list of words starting with "os" can be used to play Scrabble®, Words with Friends®, Wordle®, and more word games to feed your word game addiction.

We pull words from the dictionaries associated with each of these games. We also show the number of points you score when using each word in Scrabble® and the words in each section are sorted by Scrabble® score. Get helpful hints or use our cheat dictionary to beat your friends. The words below are grouped by the number of letters in the word so you can quickly search through word lengths.

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15 Letter Words

We found 7 fifteen-letter words starting with "os".

  • osteopathically
    25
  • oscillographies
    23
  • osteoarthritics
    20
  • osteomyelitises
    20
  • osmoregulations
    18
  • ostensibilities
    17
  • ostreiculturist
    17

14 Letter Words

We found 13 fourteen-letter words starting with "os".

  • oscillographic
    24
  • osmometrically
    23
  • osteologically
    20
  • osmoregulatory
    20
  • osteoarthritic
    19
  • osteosarcomata
    18
  • osteodermatous
    17
  • osteoarthrosis
    17
  • osteoarthroses
    17
  • osteoarthritis
    17
  • ostentatiously
    17
  • osmoregulation
    17
  • ostreicultures
    16

13 Letter Words

We found 22 thirteen-letter words starting with "os".

  • osteichthyans
    24
  • oscillography
    24
  • oscilloscopic
    21
  • oscillographs
    21
  • ostreophagous
    19
  • ostreophagies
    19
  • osteographies
    19
  • oscilloscopes
    19
  • osteopathists
    18
  • osteomyelitis
    18
  • osteofibrosis
    18
  • osteofibroses
    18
  • ostensibility
    18
  • ossifications
    18
  • osteosarcomas
    17
  • osteomalacias
    17
  • osteomalacial
    17
  • ostreiculture
    15
  • osteoplasties
    15
  • osteopetrosis
    15
  • osteopetroses
    15
  • oscillational
    15

12 Letter Words

We found 32 twelve-letter words starting with "os".

  • ostracizable
    25
  • osteichthyan
    23
  • oscillograph
    20
  • ostreophages
    18
  • osteomalacic
    18
  • oscilloscope
    18
  • ostracoderms
    17
  • osteopathist
    17
  • osteopathies
    17
  • ossification
    17
  • oscillograms
    17
  • ostracisable
    16
  • osteosarcoma
    16
  • osteoporotic
    16
  • osteoplastic
    16
  • osteomalacia
    16
  • osteoclastic
    16
  • osteoblastic
    16
  • osteological
    15
  • osteogenetic
    15
  • osteodermous
    15
  • osteoporosis
    14
  • osteoporoses
    14
  • osmolarities
    14
  • osmolalities
    14
  • osculatories
    14
  • oscillations
    14
  • osteologists
    13
  • osteogenesis
    13
  • osteogeneses
    13
  • ostentatious
    12
  • ostentations
    12

11 Letter Words

We found 45 eleven-letter words starting with "os".

  • ostracizing
    23
  • ostracizers
    22
  • osteophytic
    21
  • ostrichlike
    20
  • ostreophagy
    20
  • osteography
    20
  • osteophytes
    19
  • ostrichisms
    18
  • osteopathic
    18
  • osmotically
    18
  • ostreophage
    17
  • ostensively
    17
  • ostracoderm
    16
  • osteoplasty
    16
  • osteodermic
    16
  • osmiridiums
    16
  • oscillogram
    16
  • oscillatory
    16
  • oscillative
    16
  • osmometries
    15
  • oscitancies
    15
  • ostracodous
    14
  • ostracising
    14
  • osteodermal
    14
  • oscillating
    14
  • ostreaceous
    13
  • ostracisers
    13
  • osteotomies
    13
  • osteocollas
    13
  • osteoclasts
    13
  • osteoclasis
    13
  • osteoclases
    13
  • osteoblasts
    13
  • ostensorium
    13
  • osculations
    13
  • oscitations
    13
  • oscillators
    13
  • oscillation
    13
  • osteologist
    12
  • osteologies
    12
  • osteogenous
    12
  • osteogenies
    12
  • ostleresses
    11
  • ostentation
    11
  • ostensories
    11

10 Letter Words

We found 51 ten-letter words starting with "os". Here are the first 50. Click "More" for more 10-letter words. You can also click/tap on the word to get the definition.

  • ostracized
    22
  • ostracizes
    21
  • ostracizer
    21
  • osteophyte
    18
  • osteopathy
    18
  • ostrichism
    17
  • osmometric
    16
  • osteopaths
    15
  • osteocytes
    15
  • ostensibly
    15
  • osmolarity
    15
  • osmolality
    15
  • osmiridium
    15
  • osculatory
    15
  • oscitantly
    15
  • ostracisms
    14
  • ossifrages
    14
  • ossifragas
    14
  • osmometers
    14
  • osmeterium
    14
  • oscitances
    14
  • ostracodes
    13
  • ostracodan
    13
  • ostracised
    13
  • osteogenic
    13
  • osteoderms
    13
  • ossivorous
    13
  • ossiferous
    13
  • osmundines
    13
  • osmidrosis
    13
  • osmidroses
    13
  • osculating
    13
  • oscitating
    13
  • oscillated
    13
  • ostracises
    12
  • ostraciser
    12
  • ostraceous
    12
  • ostraceans
    12
  • osteotomes
    12
  • osteocolla
    12
  • osteoclast
    12
  • osteoblast
    12
  • ostensible
    12
  • osculation
    12
  • oscitation
    12
  • oscillator
    12
  • oscillates
    12
  • osteitides
    11
  • osteosises
    10
  • ostensoria
    10

9 Letter Words

We found 49 nine-letter words starting with "os".

  • ostracize
    20
  • ossifying
    16
  • osmometry
    16
  • osmically
    16
  • oscitancy
    16
  • ostriches
    14
  • osteotomy
    14
  • osteopath
    14
  • osteocyte
    14
  • ostracism
    13
  • osteology
    13
  • osteogeny
    13
  • ossobucos
    13
  • ossifrage
    13
  • ossifraga
    13
  • osmometer
    13
  • oscitance
    13
  • ostracods
    12
  • ostracode
    12
  • osteoderm
    12
  • ostensory
    12
  • ostensive
    12
  • ossifiers
    12
  • osseously
    12
  • osnaburgs
    12
  • osmundine
    12
  • osculated
    12
  • oscitated
    12
  • ostracise
    11
  • ostracean
    11
  • ostomates
    11
  • osteotome
    11
  • osteomata
    11
  • ossicular
    11
  • ossariums
    11
  • osmeteria
    11
  • osculates
    11
  • oscitates
    11
  • oscillate
    11
  • ostregers
    10
  • osteogens
    10
  • ostenting
    10
  • ostosises
    9
  • ostleress
    9
  • ostiolate
    9
  • ostinatos
    9
  • ostiaries
    9
  • ossuaries
    9
  • ossatures
    9

8 Letter Words

We found 39 eight-letter words starting with "os".

  • ostmarks
    14
  • ostrakon
    12
  • ossobuco
    12
  • ossified
    12
  • ostracod
    11
  • ossifies
    11
  • ossifier
    11
  • osnaburg
    11
  • osmundas
    11
  • osmosing
    11
  • ostracon
    10
  • ostomies
    10
  • ostomate
    10
  • osteomas
    10
  • osteitic
    10
  • ossicles
    10
  • ossarium
    10
  • osmiates
    10
  • osculate
    10
  • osculant
    10
  • oscitate
    10
  • oscitant
    10
  • oscinine
    10
  • ostreger
    9
  • osteoids
    9
  • osteogen
    9
  • ostented
    9
  • ostioles
    8
  • ostiolar
    8
  • ostinato
    8
  • ostinati
    8
  • osteosis
    8
  • osteoses
    8
  • osteitis
    8
  • ossetras
    8
  • osseters
    8
  • osselets
    8
  • ossature
    8
  • osieries
    8

7 Letter Words

We found 43 seven-letter words starting with "os".

  • ostmark
    13
  • ostrich
    12
  • ossific
    12
  • ospreys
    12
  • oscheal
    12
  • ostraka
    11
  • osmotic
    11
  • osmiums
    11
  • osmatic
    11
  • osculum
    11
  • ostiary
    10
  • ossuary
    10
  • osmunds
    10
  • osmunda
    10
  • osmosed
    10
  • ostraca
    9
  • osteoma
    9
  • ossicle
    9
  • osmosis
    9
  • osmoses
    9
  • osmoles
    9
  • osmolar
    9
  • osmolal
    9
  • osmious
    9
  • osmiate
    9
  • osmates
    9
  • oscules
    9
  • oscular
    9
  • oscines
    9
  • osteoid
    8
  • osiered
    8
  • ostosis
    7
  • ostoses
    7
  • ostlers
    7
  • ostiole
    7
  • ostiate
    7
  • ostents
    7
  • ossetra
    7
  • osseter
    7
  • osseous
    7
  • osselet
    7
  • osseins
    7
  • osetras
    7

6 Letter Words

We found 26 six-letter words starting with "os".

  • ossify
    12
  • ostomy
    11
  • osprey
    11
  • oshacs
    11
  • osmium
    10
  • osmics
    10
  • osmund
    9
  • osiery
    9
  • ostium
    8
  • osmous
    8
  • osmose
    8
  • osmols
    8
  • osmole
    8
  • osmate
    8
  • oscule
    8
  • oscula
    8
  • oscine
    8
  • oscars
    8
  • ostler
    6
  • ostial
    6
  • ostent
    6
  • osteal
    6
  • ossias
    6
  • ossein
    6
  • osiers
    6
  • osetra
    6

5 Letter Words

We found 7 five-letter words starting with "os".

  • oshac
    10
  • osmic
    9
  • osmol
    7
  • oscar
    7
  • ostia
    5
  • ossia
    5
  • osier
    5

4 Letter Words

We found 3 four-letter words starting with "os".

  • osar
    4
  • oses
    4
  • ossa
    4

3 Letter Words

We found 1 three-letter words starting with "os".

  • ose
    3

2 Letter Words

We found 1 two-letter words starting with "os".

  • os
    2

Similar Lists:

osaosboscosdoseosfosgoshosiosjoskoslosmosnosoosposqosrossostosuosvoswosxosyosz

Words That Start With:

a b c d e f g h i j k l m n o p q r s t u v w x y z

Words That End With:

a b c d e f g h i j k l m n o p q r s t u v w x y z

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a b c d e f g h i j k l m n o p q r s t u v w x y z

Words That Don’t Contain Letter:

a b c d e f g h i j k l m n o p q r s t u v w x y z

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