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6-letter words with K as the 4th letter and U as the 5th letter

6-letter words with K as the 4th letter and U as the 5th letter: 26 matches, from BACKUP to PICKUP, with KUMKUM leading the score list.

26 wordsTop pick BACKUPHighest score KUMKUM 18

3 of 26 are everyday words (12%). A mix of familiar words and game-only finds.

  • 5th 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 K in 4th place, E is the most common 5th letter (501 words). The bar under each letter shows the size of its list.

  • Length
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15

Best words to play first 26 · most-used first

  • BACKUP16
  • PICKUP16
  • HOOKUP15
  • MARKUP14
  • RUCKUS12
  • LOOKUP12
  • LOCKUP14
  • MOCKUP16
  • WORKUP15
  • LINKUP12
  • DINKUM13
  • WALKUP15
  • HAIKUS13
  • KUMKUM18
  • BUNKUM14
  • OTAKUS10
  • COCKUP16
  • BUPKUS14
  • BUCKUS14
  • HOKKUS17
  • KICKUP18
  • KOOKUM16
  • KUNKUR14
  • NICKUM14
  • RESKUE10

Showing the top 25 of 26 words. See every valid word

All valid words 26

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

  • BACKUP16
  • BUCKUS14
  • BUNKUM14
  • BUPKUS14
  • COCKUP16
  • DINKUM13
  • FUCKUP17
  • HAIKUS13
  • HOKKUS17
  • HOOKUP15
  • KICKUP18
  • KOOKUM16
  • KUMKUM18
  • KUNKUR14
  • LINKUP12
  • LOCKUP14
  • LOOKUP12
  • MARKUP14
  • MOCKUP16
  • NICKUM14
  • OTAKUS10
  • PICKUP16
  • RESKUE10
  • RUCKUS12
  • WALKUP15
  • WORKUP15
Letters by positionIn 50% of these words the 6th letter is P.
1st letter
  1. B15%
  2. K15%
  3. H12%
2nd letter
  1. O31%
  2. U27%
  3. I19%
3rd letter
  1. C38%
  2. N15%
  3. O12%
6th letter
  1. P50%
  2. S23%
  3. M19%

Highest-scoring words

Scrabble and Words With Friends points, before board bonuses
Score spreadMost of these words score 14 in Scrabble; KUMKUM tops the list with 18. Scores before board bonuses.
  1. 1010 points: 2 words
  2. 11 points: 0 words
  3. 1212 points: 3 words
  4. 13 points: 2 words
  5. 1414 points: 7 words
  6. 15 points: 3 words
  7. 1616 points: 5 words
  8. 17 points: 2 words
  9. 1818 points: 2 words
WordScrabbleWords With FriendsDictionaries
KUMKUM1822NWL only
KICKUP1821All three
HOKKUS1717NWL only
BACKUP1620All three
PICKUP1620All three
MOCKUP1620All three
COCKUP1620All three
KOOKUM1618NWL only
HOOKUP1516All three
WORKUP1517All three
WALKUP1518All three
MARKUP1417All three

BACKUP and PICKUP are easy to retrieve because both finish with the same two letters. MOCKUP and HOOKUP reinforce that compact family, while RUCKUS prevents the pattern from collapsing into one suffix. Use that contrast to avoid overlooking words whose final U is followed by another tile.

Words ending with K-U in the middle

  • BACKUP, PICKUP, HOOKUP, and MOCKUP share an -up finish.
  • RUCKUS also matches, despite its different ending.
  • KUMKUM and KICKUP reach 18 points each.
  • BACKUP, PICKUP, and MOCKUP score 16.
  • Only three entries count as common.

What word shapes finish with K-U?

BACKUP, PICKUP, and MOCKUP share a recognizable -up ending.

KUMKUM and KICKUP each score 18, ahead of several familiar entries.

Balancing familiar plays and rare forms

Tip

Use the common -up words as memory prompts, not as a complete list of possible endings. RUCKUS demonstrates why a final-position check matters even when the central letters are fixed. Rack fit can make a lower score the practical choice.

Questions people ask

Which words fit the K-U ending?
BACKUP, PICKUP, HOOKUP, and MOCKUP all fit with K fourth and U fifth. The pattern has 26 matches total, including less familiar forms such as KUMKUM and BUPKUS.
What scores highest in the group?
KUMKUM and KICKUP each score 18 points. BACKUP, PICKUP, and MOCKUP each score 16, so several recognizable entries sit close behind the leaders. The leaders differ from common examples, so verify the exact entries before relying on them in a game.
Are all the entries common vocabulary?
No. Only three matches fall in the common group, despite recognizable words such as BACKUP and PICKUP. The rest include specialized vocabulary, so a pattern match should still be checked against your game’s word list.

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