“NONZERO” is a valid word. — 16 points Scrabble

ozonea colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation)
zoner

nonea canonical hour that is the ninth hour of the day counting from sunrise
zeroa quantity of no importance
zonea locally circumscribed place characterized by some distinctive features
noonthe middle of the day
neona colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
oozeany thick, viscous matter
zoon
orzopasta shaped like pearls of barley; frequently prepared with lamb in Greek cuisine

onethe smallest whole number or a numeral representing this number
nor
zoothe facility where wild animals are housed for exhibition
zen
orea mineral that contains metal that is valuable enough to be mined
roefish eggs or egg-filled ovary; having a grainy texture
noo
ernbulky greyish-brown eagle with a short wedge-shaped white tail; of Europe and Greenland
eonthe longest division of geological time

onin operation or operational
noa negative
ora state in northwestern United States on the Pacific
era trivalent metallic element of the rare earth group; occurs with yttrium
rea rare heavy polyvalent metallic element that resembles manganese chemically and is used in some alloys; is obtained as a by-product in refining molybdenum
enhalf the width of an em
nea colorless odorless gaseous element that give a red glow in a vacuum tube; one of the six inert gasses; occurs in the air in small amounts
oe

NONZERO