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6-letter words with S as the 1st letter and X as the 6th letter

15 6-letter words with S first and X sixth include SYNTAX and SUFFIX; SKYBOX is the top scorer at 22 points.

15 wordsTop pick SYNTAXHighest score SKYBOX 22

1 of 15 are everyday words (7%). Mostly rare words: great for Scrabble, tough for daily puzzles.

  • 1st 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

With S in 1st place, S is the most common 6th letter (910 words). The bar under each letter shows the size of its list.

  • Length
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15

Best words to play first 15 · most-used first

  • SYNTAX16
  • SUFFIX19
  • SPHINX18
  • SUPLEX15
  • SKYBOX22
  • SPHYNX21
  • SURTAX13
  • SYRINX16
  • SCOLEX15
  • SPADIX16
  • SMILAX15
  • STORAX13
  • STYRAX16
  • SUBFIX18
  • SILVEX16
All valid words 15

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

  • SCOLEX15
  • SILVEX16
  • SKYBOX22
  • SMILAX15
  • SPADIX16
  • SPHINX18
  • SPHYNX21
  • STORAX13
  • STYRAX16
  • SUBFIX18
  • SUFFIX19
  • SUPLEX15
  • SURTAX13
  • SYNTAX16
  • SYRINX16
Letters by positionIn 33% of these words the 5th letter is A.
2nd letter
  1. U27%
  2. P20%
  3. T13%
3rd letter
  1. O13%
  2. Y13%
  3. H13%
4th letter
  1. L20%
  2. I13%
  3. R13%
5th letter
  1. A33%
  2. E20%
  3. I20%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
WordScrabbleWords With FriendsDictionaries
SKYBOX2222All three
SPHYNX2121Collins · NWL
SUFFIX1920All three
SPHINX1819All three
SUBFIX1820All three
SYNTAX1616All three
SYRINX1616All three
SPADIX1617All three
STYRAX1615All three
SILVEX1618All three
SUPLEX1518Collins only
SCOLEX1517All three

The fixed X at the end makes this one of the tightest patterns in the set. SYNTAX, SUFFIX, SPHINX, and SUPLEX are recognizable anchors, while SKYBOX and SPHYNX lead the tile scores. Only one match falls in the common-word group, so the rest need careful checking.

At a glance

  • Exactly 15 matches start with S and end with X.
  • SYNTAX, SUFFIX, SPHINX, and SUPLEX are familiar anchors.
  • SKYBOX scores 22; SPHYNX follows at 21.
  • The average score is 16.6 points.
  • Collins lists all 15; NWL2023 includes 14.

Which words are easiest to recognize?

SYNTAX, SUFFIX, SPHINX, and SUPLEX are the clearest starting points. SURTAX and SKYBOX are also recognizable, while SYRINX and SPADEX are less likely to appear in ordinary play. The final X is fixed in every candidate, so compare the first five letters carefully.

Only one of the 15 words is classed as common. That is a sharp warning against treating a plausible-looking sequence as automatically acceptable. The pattern is useful for narrowing a rack, but unfamiliar entries need confirmation against your game’s dictionary.

Why are the score totals so high?

SKYBOX leads at 22 points, SPHYNX scores 21, and SUFFIX reaches 19. SPHINX and SUBFIX each score 18. The X contributes a large tile value, which explains why even the average reaches 16.6 before board premiums.

This is a strong scoring pattern, but the small pool limits your options. SYNTAX is both a familiar example and a 16-point play; SKYBOX earns more, but the best board placement still depends on the available squares.

The pool ranges from straightforward SYNTAX to botanical and specialist forms such as SMILAX and STORAX. A clue solver should separate spelling confidence from game-list acceptance.

How to use the pattern

Tip

Keep the final X fixed while testing the remaining letters. Compare SYNTAX with SKYBOX for confidence and score, then verify any rarer option before playing it.

Questions people ask

How many six-letter words start with S and end with X?
There are 15 matches with S at the beginning and X at the end. SYNTAX, SUFFIX, SPHINX, and SUPLEX are among the recognizable examples. Only one entry is in the common-word group.
What is the highest-scoring word ending in X?
SKYBOX leads this pattern at 22 points, with SPHYNX next at 21 and SUFFIX at 19. These totals use standard letter values before board multipliers, so a premium square can change the final score.
Are all 15 words accepted in every tournament dictionary?
No. Collins includes all 15 matches, while NWL2023 includes 14. That difference matters in North American play, so check the list used in your game before relying on a less familiar option such as STYRAX or SUBFIX.

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