6-letter words with C as the 5th letter and K as the 6th letter

The frame is _ _ _ C K, so the closing pair is always CK. ATTACK, STRUCK, UNPACK, and HIJACK are the ones players meet most, and this shape carries the highest average score of any C pattern here at 14.6. ZEBECK, HIJACK, and PAJOCK push well past that mark.

The _ _ _ C K frame

• 67 tournament words fit the frame _ _ _ C K.
• Every one ends in -CK, so the final pair never varies.
• U opens 11 words, R opens 10, and S opens 9.
• ZEBECK leads the scores at 23; HIJACK reaches 22 and PAJOCK 21.
• Eight begin with UN-, among them UNCOCK, UNDECK, UNDOCK, and UNTUCK.
• The average score is a remarkable 14.6.

Why the scores run so high

A closing K is worth 5 points, and it never has to work alone. ZEBECK adds a Z for 23, HIJACK pairs a J with the K for 22, and PAJOCK and CHYACK reach 21 and 20. Even the middle of the pack is rich: THWACK and KOPECK each score 18.

Nothing here falls into the low single figures. The floor is set by ATTACK, STRUCK, and UNTUCK, which all still score 12, so the whole list stays profitable.

The UN- and RE- openings

Eight words begin with UN-, including UNPICK, UNPACK, UNTACK, and UNTUCK. Eight more start with RE-, running from REPACK and RELOCK to RERACK and RETACK. Together those two prefixes open nearly a quarter of the set.

The rest fan out across U, R, S, A, B, and M. U leads the first-letter count with 11, R follows on 10, and S on 9, so no single opening takes charge.

A caution on the high scorers