Is “Phos” a Scrabble word?
Yes
PHOS
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Phos
noun
1.A Vietnamese soup with a beef base, typically served with rice noodles and beef or chicken.