Is “Nos” a Scrabble word?
Yes
NOS
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 Nos
noun
1.A negating expression; an answer that shows disagreement or disapproval
2.A vote not in favor, or opposing a proposition
“The workers voted on whether to strike, and there were thirty "yeses" and two "nos".”
Synonyms: nay, nope
noun
1.An abstract entity used to describe quantity.
“Zero, one, −1, 2.5, and pi are all numbers.”
2.A numeral: a symbol for a non-negative integer.
“The number 8 is usually made with a single stroke.”
3.An element of one of several sets: natural numbers, integers, rational numbers, real numbers, complex numbers, and sometimes extensions such as hypercomplex numbers, etc.
“The equation e^{i\pi}+1=0 includes the most important numbers: 1, 0, \pi, i, and e.”
Synonyms: numeral, rime, scalar