Words Containing UM

Q: How many words contain "UM"?

3,551 valid English words contain the sequence UM.

Q: Best Scrabble word containing UM?

MESEMBRYANTHEMUMS at 33 pts before bonuses.

Q: Longest word containing UM?

ELECTROLUMINESCENCES — 20 letters.

There are 3,551 English words that contain the sequence UM. Range: ABOMASUM to ZOOSPORANGIUM. The Scrabble® high-scorer is MESEMBRYANTHEMUMS at 33 points; the longest is ELECTROLUMINESCENCES (20 letters). Perfect for tricky Q- and Z-heavy racks in Scrabble and Words With Friends. Average word length in this list is 9.1 letters.

By length — 3,551 words containing UM

Long lists are easier to browse split by word length. Pick a length to see just those words:

3-letter(11)
4-letter(45)
5-letter(142)
6-letter(302)
7-letter(488)
8-letter(658)
9-letter(548)
10-letter(456)
11-letter(330)
12-letter(217)
13-letter(128)
14-letter(94)
15-letter(56)

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B

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Point values shown are Scrabble® (letters only, before board bonuses). Browse deeper via the word-lists hub.

Showing the first 600 of 3,551 words. Use the pattern search to narrow further, or filter with the unscrambler.

Top 10 highest-scoring words

Scored on letters only (no board bonuses). WWF uses different tile values from Scrabble — J, Q and Z are worth 10 points in WWF; X is worth 8.

#	Word	Scrabble	WWF
1	quinquenniums	33	40
2	mesembryanthemums	33	38
3	quinquennium	32	39
4	mesembryanthemum	32	37
5	chemiluminescences	31	39
6	hexamethoniums	31	33
7	chemiluminescence	30	38
8	thermoluminescences	30	37
9	dehumanizations	30	33
10	hexamethonium	30	32

What these words mean

quinquenniums: Valid 13-letter English word — definition not on file.
mesembryanthemums: Valid 17-letter English word — definition not on file.
quinquennium: Valid 12-letter English word — definition not on file.
mesembryanthemum: Valid 16-letter English word — definition not on file.
chemiluminescences: Valid 18-letter English word — definition not on file.
hexamethoniums: Valid 14-letter English word — definition not on file.
chemiluminescence: Valid 17-letter English word — definition not on file.
thermoluminescences: Valid 19-letter English word — definition not on file.
dehumanizations: Valid 15-letter English word — definition not on file.
hexamethonium: Valid 13-letter English word — definition not on file.

Definitions from the Free Dictionary API, cached for repeat visits.

FAQs

How many words contain "UM"?

3,551 valid English words contain UM.

Best Scrabble word containing UM?

MESEMBRYANTHEMUMS at 33 pts.

Longest word containing UM?

ELECTROLUMINESCENCES (20 letters).