Avenill \a-veni-ll, av(e)-nill\ as a boy's name is a variant of Avenall (Old French), and the meaning of Avenill is "oat pasture".
The baby name Avenill sounds like Avenil, Avenell and Aveneill. Other similar baby names are Averill, Avenel, Aveneil, Avrill, Averyll, Averil and Averell.