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15-Letter Words Starting With IR

  • 27 words
  • All English dictionaries
  • Scrabble points
Dictionary

All 15-Letter Words Starting With IR 27 words

How common is IR at the start of fifteen-letter words?

Our combined English word list has 27 fifteen-letter words that start with IR. They average 20.8 points, the best is IRRATIONALIZING (25 points) and 44.4% end in S.

Total words
27
Average Scrabble score
20.8
out of 25 max
Everyday words
0%
common in ordinary English
Most common ending
S
44.4% of words

Most common last letters

  • s 44.4%
  • y 37%
  • g 7.4%

Top vowel pairs

  • io18.5%
  • ie7.4%
  • ea3.7%

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 fifteen-letter word that starts with IR

i 1r 1r 1a 1t 1i 1o 1n 1a 1l 1i 1z 10i 1n 1g 2

I 1 + R 1 + R 1 + A 1 + T 1 + I 1 + O 1 + N 1 + A 1 + L 1 + I 1 + Z 10 + I 1 + N 1 + G 2 = 25 points

Double word
50 pts
Triple word
75 pts

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

irrationalizing

No dictionary definition on file. This is a valid game word that standard dictionaries rarely cover.

  • Scrabble US
  • Scrabble UK
  • Words With Friends

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15-Letter Words Starting With IR by the numbers

15-Letter Words Starting With IR FAQ

How many fifteen-letter words that start with IR are there?

There are 27 fifteen-letter words that start with IR 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 fifteen-letter word that starts with IR?

IRRATIONALIZING is worth 25 points in Scrabble before any bonus squares. Other strong options are IRREFORMABILITY (25), IRREPREHENSIBLY (25), IRREFRAGABILITY (24).

Which rare fifteen-letter words that start with IR score well?

Uncommon but valid choices include IRRATIONALIZING (25), IRREFORMABILITY (25), IRREPREHENSIBLY (25), IRREFRAGABILITY (24). Few players know them, so they can catch an opponent off guard.