serranos

solano

solanos

soprano

sopranos

spanokopita

spanokopitas

stanol

stanols

steganographic

steganography

stephanotis

stephanotises

stratovolcano

stratovolcanoes

synanon

synanons

tetanoid

timpano

titanous

trebbiano

trebbianos

trypanosome

trypanosomes

trypanosomiases

trypanosomiasis

tympano

uncanonical

uranography

uranous

urbanologies

urbanologist

urbanologists

urbanology

volcano

volcanoes

volcanologic

volcanological

volcanologist

volcanologists

volcanology

volcanos

vulcanologist

vulcanologists

vulcanology

zebrano

zebranos

zingano