7-letter words with X as the 1st letter and O as the 4th letter

The fixed positions make this a narrow pattern: X starts every match, and O sits in the fourth slot. The twelve entries range from familiar-looking forms such as XEROXED and XEROXES to specialist terms including XENOPUS and XYLOGEN. The ending pattern is lopsided too: eight words finish with S, while only four use another final letter; nine entries have definitions.

How many 7-letter words have X first and O fourth?

• Exactly 12 tournament-dictionary words fit X in slot one and O in slot four.
• Collins contains all 12; NWL2023 accepts 7, while ENABLE accepts 6.
• Eight entries end in S; C appears twice as a final letter.
• XEROXED leads the Scrabble scores at 22, ahead of XEROXES at 21.
• None of the 12 falls within the top 25,000 English words by frequency.

Which endings and dictionaries dominate this pattern?

S is the clear favorite at the end of these words: eight of the twelve use it. XEROSIS and XYLOGEN are among the exceptions, ending in C and N respectively; XEROXED ends in D. When your puzzle fixes the final tile, start with S, but keep those less common endings in reserve.

The dictionary split matters more than the small list suggests. Collins accepts all 12, but NWL2023 has 7 and ENABLE has 6. The lists overlap, so those counts do not add up to a unique total.

These entries are uncommon in general English; check your game's word list before relying on one.

• Eight matches end in S.
• Two matches end in C; one ends in D and one in N.
• Collins accepts 12, NWL2023 accepts 7, and ENABLE accepts 6.

Which X-and-O words score most?

XEROXED is the standout scorer at 22 Scrabble points, with XEROXES close behind at 21. Xylomas and xylonic each score 19, then xylogen follows at 18. Those four lead the scoring options, so check your rack against them before settling for a lower-value fit.

The average score is 17.2, but that does not make every match equally practical: several are specialist terms, and none ranks among the commonest 25,000 English words. The useful board-reading insight is the S-heavy ending—an open S slot matches eight entries, while a clue for C, D, or N narrows the choices sharply. For adjacent patterns, compare the V-, W-, or Z-starting lists.

• XEROXED scores 22 Scrabble points.
• XEROXES scores 21 points; XYLOMAS and XYLONIC score 19 each.
• XYLOGEN scores 18 points, above the 17.2 average.