ROIL Meaning of ROIL in English transcription, транскрипция: [ rɔɪl ]v.tr. 1 make (a liquid) turbid by agitating it. 2 US = RILE 1. [perh. f. OF ruiler mix mortar f. LL regulare regulate] English main colloquial, spoken dictionary. Английский основной разговорный словарь. 2012