Words Containing OS

Q: How many words contain "OS"?

6,009 valid English words contain the sequence OS.

Q: Best Scrabble word containing OS?

CARBOXYMETHYLCELLULOSES at 47 pts before bonuses.

Q: Longest word containing OS?

PHOSPHATIDYLETHANOLAMINES — 25 letters.

There are 6,009 English words that contain the sequence OS. Range: ABELMOSK to ZYMOSIS. The Scrabble® high-scorer is CARBOXYMETHYLCELLULOSES at 47 points; the longest is PHOSPHATIDYLETHANOLAMINES (25 letters). Perfect for tricky Q- and Z-heavy racks in Scrabble and Words With Friends. The list is ordered alphabetically; use the filter box below to jump to a specific starting letter.

By length — 6,009 words containing OS

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

4-letter(62)
5-letter(206)
6-letter(464)
7-letter(609)
8-letter(846)
9-letter(790)
10-letter(728)
11-letter(622)
12-letter(540)
13-letter(401)
14-letter(300)
15-letter(183)

A

B

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

Showing the first 600 of 6,009 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	carboxymethylcelluloses	47	53
2	carboxymethylcellulose	46	52
3	phosphoglyceraldehydes	46	47
4	phosphoglyceraldehyde	45	46
5	phosphatidylethanolamines	44	47
6	phosphatidylethanolamine	43	46
7	microspectrophotometric	40	46
8	microspectrophotometry	40	44
9	microspectrophotometries	39	44
10	phosphofructokinases	39	42

What these words mean

carboxymethylcelluloses: Valid 23-letter English word — definition not on file.
carboxymethylcellulose: Valid 22-letter English word — definition not on file.
phosphoglyceraldehydes: Valid 22-letter English word — definition not on file.
phosphoglyceraldehyde: Valid 21-letter English word — definition not on file.
phosphatidylethanolamines: Valid 25-letter English word — definition not on file.
phosphatidylethanolamine: Valid 24-letter English word — definition not on file.
microspectrophotometric: Valid 23-letter English word — definition not on file.
microspectrophotometry: Valid 22-letter English word — definition not on file.
microspectrophotometries: Valid 24-letter English word — definition not on file.
phosphofructokinases: Valid 20-letter English word — definition not on file.

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

FAQs

How many words contain "OS"?

6,009 valid English words contain OS.

Best Scrabble word containing OS?

CARBOXYMETHYLCELLULOSES at 47 pts.

Longest word containing OS?

PHOSPHATIDYLETHANOLAMINES (25 letters).