Bing found the following results
Roil Definition & Meaning - Merriam-Webster
ROIL | English meaning - Cambridge Dictionary
ROIL Definition & Meaning | Dictionary.com
ROIL | definition in the Cambridge English Dictionary
Roil - Definition, Meaning & Synonyms | Vocabulary.com
Roil - definition of roil by The Free Dictionary
roil verb - Definition, pictures, pronunciation and usage ...