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15-letter words starting with Q

29 15-letter words starting with Q make a compact, specialized set; QUIZZIFICATIONS leads the scoring at 47 points.

29 wordsTop pick QUARTERFINALISTHighest score QUIZZIFICATIONS 47

P starts the most 15-letter words (695); Y starts the fewest (2). Q ranks #21 of 26. The bar under each letter shows the size of its list.

Best words to play first 29 · most-used first

  • QUARTERFINALIST27
  • QUANTIFICATIONS29
  • QUADRAGENARIANS26
  • QUADRINGENARIES26
  • QUADRIPARTITION27
  • QUADRISYLLABLES30
  • QUADRIVALENCIES30
  • QUADRUPLICATING30
  • QUADRUPLICATION29
  • QUADRUPLICITIES29
  • QUARRELSOMENESS26
  • QUARTERMISTRESS26
  • QUATERCENTENARY29
  • QUATTROCENTISMS28
  • QUATTROCENTISTS26
  • QUERULOUSNESSES24
  • QUESTIONABILITY29
  • QUICKSILVERINGS34
  • QUINCENTENARIES26
  • QUINCENTENNIALS26
  • QUINGENTENARIES25
  • QUINQUAGENARIAN34
  • QUINQUEVALENCES38
  • QUINTESSENTIALS24
  • QUINTUPLICATING29
  • QUINTUPLICATION28
  • QUIZZIFICATIONS47
  • QUODLIBETARIANS27
  • QUODLIBETICALLY32
All valid words 29

A to Z. Includes rare and Collins-only words. Linked tiles open the word's meaning, score and rhymes.

  • QUADRAGENARIANS26
  • QUADRINGENARIES26
  • QUADRIPARTITION27
  • QUADRISYLLABLES30
  • QUADRIVALENCIES30
  • QUADRUPLICATING30
  • QUADRUPLICATION29
  • QUADRUPLICITIES29
  • QUANTIFICATIONS29
  • QUARRELSOMENESS26
  • QUARTERFINALIST27
  • QUARTERMISTRESS26
  • QUATERCENTENARY29
  • QUATTROCENTISMS28
  • QUATTROCENTISTS26
  • QUERULOUSNESSES24
  • QUESTIONABILITY29
  • QUICKSILVERINGS34
  • QUINCENTENARIES26
  • QUINCENTENNIALS26
  • QUINGENTENARIES25
  • QUINQUAGENARIAN34
  • QUINQUEVALENCES38
  • QUINTESSENTIALS24
  • QUINTUPLICATING29
  • QUINTUPLICATION28
  • QUIZZIFICATIONS47
  • QUODLIBETARIANS27
  • QUODLIBETICALLY32
Letters by positionIn 100% of these words the 2nd letter is U.
2nd letter
  1. U100%
3rd letter
  1. A52%
  2. I34%
  3. E7%
4th letter
  1. D34%
  2. N31%
  3. R14%
10th letter
  1. N34%
  2. C17%
  3. A14%
13th letter
  1. I45%
  2. A17%
  3. S10%
15th letter
  1. S66%
  2. N14%
  3. Y10%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 26 in Scrabble; QUIZZIFICATIONS tops the list with 47. Scores before board bonuses.
  1. 2424 points: 2 words
  2. 25 points: 1 words
  3. 2626 points: 7 words
  4. 27 points: 3 words
  5. 2828 points: 2 words
  6. 29 points: 6 words
  7. 3030 points: 3 words
  8. 31 points: 0 words
  9. 3232 points: 1 words
  10. 33 points: 0 words
  11. 3434 points: 2 words
  12. 35 points: 0 words
  13. 3636 points: 0 words
  14. 37 points: 0 words
  15. 3838 points: 1 words
  16. 39 points: 0 words
  17. 4040 points: 0 words
  18. 41 points: 0 words
  19. 4242 points: 0 words
  20. 43 points: 0 words
  21. 4444 points: 0 words
  22. 45 points: 0 words
  23. 4646 points: 0 words
  24. 47 points: 1 words
WordScrabbleWords With FriendsDictionaries
QUIZZIFICATIONS4750Collins only
QUINQUEVALENCES3845Collins only
QUICKSILVERINGS3440Collins only
QUINQUAGENARIAN3440Collins · NWL
QUODLIBETICALLY3237Collins only
QUADRUPLICATING3037All three
QUADRISYLLABLES3034Collins only
QUADRIVALENCIES3035Collins only
QUANTIFICATIONS2933All three
QUADRUPLICATION2935All three
QUADRUPLICITIES2934All three
QUATERCENTENARY2932All three

Q is a strikingly uncommon opening for a fifteen-letter word: this set has 29 entries, while P has 695. The contrast continues across Q words of different lengths: the seven-letter group has 179 entries, but the fourteen-letter group has 55. These long Q words lean toward technical vocabulary, not everyday play.

How many 15-letter words starting with Q are there?

  • There are 29 tournament-dictionary entries, and none fall within the top 25,000 English words by frequency.
  • S is the most common final letter: 19 entries end that way, compared with four ending in N.
  • Collins includes 28 entries, while NWL2023 includes 14 and ENABLE includes 11; dictionary sets overlap.
  • QUIZZIFICATIONS tops the scoring list at 47 points, well ahead of the next entry.

Which Q words score the most?

QUIZZIFICATIONS is the standout scorer at 47 points. QUINQUEVALENCES follows at 38, while QUICKSILVERINGS and QUINQUAGENARIAN each score 34. Those numbers make the longest Q entries worth checking when a board gives you room for a big play.

The examples also show how specialized the vocabulary gets. QUANTIFICATIONS and QUADRUPLICATING have recognizable word-building patterns, while QUINQUEVALENCES and QUADRIVALENCIES are less familiar. A long word can be playable without being a word you use in ordinary conversation.

What should you know before playing a Q word?

For 15-letter words starting with Q, dictionary coverage matters: the 29-entry total combines tournament lists, but no single named dictionary contains every entry. Check your game's word list before committing to an unfamiliar form, especially if you plan around a word outside Collins.

The frequency figure has a useful limit: zero entries meet our cutoff for common English vocabulary, defined as the top 25,000 words by frequency. Treat examples such as QUARRELSOMENESS and QUARTERFINALIST as specialist vocabulary, not safe everyday guesses. For shorter Q options, compare the fourteen-letter set of 55 with the five-letter set of 79.

Questions people ask

How many 15-letter Q words end in S?
19 of the 29 entries end in S, making it the most common final letter by a wide margin. N comes next with four words, followed by Y with three. That ending pattern is a quick way to narrow a long Q-word search when the final tile is already fixed.
What is the highest-scoring 15-letter word starting with Q?
QUIZZIFICATIONS is the highest scorer, at 47 points. QUINQUEVALENCES ranks next at 38, and QUICKSILVERINGS and QUINQUAGENARIAN each score 34. The gap between the top two is nine points, so check the board layout as well as the word's base score.
Are any 15-letter words starting with Q common?
None meet our common-word cutoff, which is the top 25,000 English words by word frequency. Entries such as QUADRIPARTITION and QUINGENTENARIES are specialist forms. A word's presence in a tournament dictionary does not mean it will be familiar to most readers.

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