Some eight letter words with the third letter B are:albacoreambianceambitionambrosiaarborealasbestosbabushkabiblicalbobolinkCabernetdebonairdebutantembezzleemblazonembolismembossedfabuloushabitualhibiscushobbyistimbecilejubilantlibationlobbyistlobotomymobilitynebulousnobilitypubliclyrebelledrebuttalsabotagesaboteursobrietysubmergesubpoenasubtotalsubtractsuburbantabletoptoboggantuberousumbrellaunbrokenunbuckleunbuttonurbanizevibrator
4 letter words with the third letter b: * cube * tube * mabe (a type of pearl) * lube * jibe * gibe
debt
Disturb, washtub.
babies
sybass
Some eight letter words with the third letter B are:albacoreambianceambitionambrosiaarborealasbestosbabushkabiblicalbobolinkCabernetdebonairdebutantembezzleemblazonembolismembossedfabuloushabitualhibiscushobbyistimbecilejubilantlibationlobbyistlobotomymobilitynebulousnobilitypubliclyrebelledrebuttalsabotagesaboteursobrietysubmergesubpoenasubtotalsubtractsuburbantabletoptoboggantuberousumbrellaunbrokenunbuckleunbuttonurbanizevibrator
Labor
cabinetcaboosedebtorsrebuiltonboardmobsterreboundsubsidywebsitetabletssubwayslobsterreboundrebateslibraryrabbitsdebrieffibbingembraceembargolabeledorbitedrebirth
abuts
Benumb is a 6 letter word. It means to make numb.
Labours
cobbler
4 letter words with the third letter b: * cube * tube * mabe (a type of pearl) * lube * jibe * gibe
debt
inbound, unbound
Disturb, washtub.