SOB
SOBA
SOBAS
SOBBED
SOBBER
SOBBERS
SOBBING
SOBBINGLY
SOBBINGS
SOBEIT
SOBER
SOBERED
SOBERER
SOBEREST
SOBERING
SOBERINGLY
SOBERISE
SOBERISED
SOBERISES
SOBERISING
SOBERIZE
SOBERIZED
SOBERIZES
SOBERIZING
SOBERLY
SOBERNESS
SOBERNESSES
SOBERS
SOBERSIDED
SOBERSIDEDNESS
SOBERSIDES
SOBFUL
SOBOLE
SOBOLES
SOBOLIFEROUS
SOBRIETIES
SOBRIETY
SOBRIQUET
SOBRIQUETS
SOBS

40 words start with SOB.