掩蓋[engai] cover(ing)
掩護部隊[engobutai] covering force
掩蔽[enpei] cover
掩い[ooi] cover
掩護[engo] covering

掩う[oou] to cover
掩壕[engou] cover trench
顔を掩う[kaowooou] to cover one's face
掩護射撃[engoshageki] (providing) covering fire
掩撃[engeki] sneak attack (by a small group)

円蓋[engai] cupola
掩蓋[engai] cover(ing)
火蓋[hibuta] apron of a gun
蓋し[kedashi] perhaps
蓋然性[gaizensei] probability

口蓋[kougai] palate
臭い物に蓋[kusaimononifuta] looking the other way
上げ蓋[agebuta] trap door
天蓋[tengai] canopy