4-Letter Words Ending in OS

There are 26 4-letter words that end in OS. 15 are common words, such as ADOS and BIOS. A rarer one is UDOS. In this set, O is the most frequent open letter (8 words). 8 words contain a doubled letter.

Full list 26

Common words

adosbiosboosbroscoosduosegosemosgoosmoosprosrhos
adosbiosboosbroscoosduosegosemosgoosmoosprosrhostwoswooszoosavoscloseposloosmhosnaospoosaboserostaosudos

About this list

Words
26 (15 common words)
Common example
ados
Rare example
udos
Doubled letters
8
Ending in S
26
Most frequent letter
O (8)

Questions

How many 4-letter words ending in os are there?

26. 15 of them are common words.

What is a common example?

ADOS is among the common words in this set.