Yes, pus is a Scrabble word!
...and is worth 5 points in Scrabble, and 7 points in Words with Friends
pus
Noun
1. The tenth month of the Hindu calendar
2. A fluid product of inflammation
3. A solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239
What Scrabble words can I make with the letters in pus?
3 Letter Words
2 Letter Words