The word is "LOUSE"
Ant
ant
arc
AOL
Eel.
A keg
You is not a letter it is three letters in a word.
Coefficient
bookkeeping
The two Greek letters that begin with P and have three letters are PHI and PSI. There are no Greek letters that end with S.
Axe, Awl, Adz
A gazelle is a type of antelope.