OBVENTION
OBVENTIONS
OBVERSE
OBVERSELY
OBVERSES
OBVERSION
OBVERSIONS
OBVERT
OBVERTED
OBVERTING
OBVERTS
OBVIABLE
OBVIATE
OBVIATED
OBVIATES
OBVIATING
OBVIATION
OBVIATIONS
OBVIATOR
OBVIATORS
OBVIOUS
OBVIOUSLY
OBVIOUSNESS
OBVIOUSNESSES
OBVOLUTE
OBVOLUTED
OBVOLUTION
OBVOLUTIONS
OBVOLUTIVE
OBVOLVENT

30 words start with OBV.