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10-Letter Words Starting With O

  • 1,287 words
  • All English dictionaries
  • Scrabble points
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Popular 10-Letter Words Starting With O

The most familiar words on this list, with their Scrabble scores.

All 10-Letter Words Starting With O 1,287 words

How common is O at the start of ten-letter words?

Our combined English word list has 1,287 ten-letter words that start with O. They average 15.6 points, the best is OXYGENIZED (31 points) and 35.3% end in S.

Total words
1,287
Average Scrabble score
15.6
out of 31 max
Everyday words
9%
common in ordinary English
Most common ending
S
35.3% of words

Most common last letters

  • s 35.3%
  • d 19.7%
  • g 16.5%

Top vowel pairs

  • ou31.4%
  • ie4.4%
  • io4.4%

Share of words where these two vowels sit side by side.

Rare words worth knowing

Valid in this dictionary but rarely seen in everyday English.

Highest-scoring ten-letter word that starts with O

o 1x 8y 4g 2e 1n 1i 1z 10e 1d 2

O 1 + X 8 + Y 4 + G 2 + E 1 + N 1 + I 1 + Z 10 + E 1 + D 2 = 31 points

Double word
62 pts
Triple word
93 pts

Face value of the tiles, then the whole word on a double- or triple-word square (letter bonuses and bingos not included).

oxygenized

Form of oxygenize

  1. verbchange (a compound) by increasing the proportion of the electronegative part; or change (an element or ion) from a lower to a higher positive valence: remove one or more electrons from (an atom, ion, or molecule)
  2. verbdehydrogenate with oxygen
  3. verbimpregnate, combine, or supply with oxygen“oxygenate blood”
  • Scrabble US
  • Scrabble UK
  • Words With Friends

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10-Letter Words Starting With O FAQ

How many ten-letter words that start with O are there?

There are 1,287 ten-letter words that start with O in our combined English word list. Other dictionaries give different totals, so switch dictionary at the top of the list to compare.

What is the highest-scoring ten-letter word that starts with O?

OXYGENIZED is worth 31 points in Scrabble before any bonus squares. Other strong options are OXYCEPHALY (30), OUTDAZZLED (30), OXYGENIZER (30).

What are some common ten-letter words that start with O?

Everyday examples include OCCASIONAL, OPPOSITION, ORIGINALLY, OBLIGATORY, OUTRAGEOUS, OPPRESSION, OBLIGATION, OCCURRENCE. Sort the list by "Most common" to see the familiar words first.

Which rare ten-letter words that start with O score well?

Uncommon but valid choices include OXYGENIZED (31), OUTDAZZLED (30), OXYGENIZER (30), OXYGENIZES (30). Few players know them, so they can catch an opponent off guard.