Answer:
敗 HAI, yabu(reru) - be defeated
刀 TOU, katana - sword
腸 CHOU - intestines, entrails
恥 CHI, haji, ha(jiru), ha(jirau), ha(zukashii) - shame, disgrace, be shy
福 FUKU - fortune, blessing, wealth
All take 大 (DAI, oo(kii) - big) in front to make a word, but only XX uses the "Oo" reading (OoXXXX); the others are all "Tai/Dai-":
大敗 Taihai - A great loss
大刀 Daitou - A scythe-like weapon
大腸 Daichou - The large intetine
大恥 Oohaji - Great shame, embarrassment
大福 Daifuku - A Japanese confection