Choose or find odd word - Raid , Attack , Assault , Defence , Ambush

D. DEFENCE

Choose or find odd word - Odour , Smell , Foul , Fragrance , Incense

C. FOUL

Choose or find odd word - Admiral , Colonel , Captain , Commodore , Lieutenant

B. COLONEL

Choose or find odd word - Correction , Improvement , Betterment , Elevation

D. ELEVATION

Choose or find odd word - Canoe , Igloo , Yacht , Dinghy , Raft

B. IGLOO