defensive preparations against military threats / preparations for natural disasters

fortify, prepare to defend against enemies or natural disasters

Short for コンビネーション (konbinēshon, “combination”).

aesthetics

to equip, to furnish, to provide with something

(rare) the base of the neck / (rare) (by extension upwards) the head

imperfect, deficient, inadequate

imperfection, deficiency

a weekday, an ordinary day / the "say" radical (曰), literally "the flat 日 (hi, “sun, day”) radical"

rokurokubi, an imaginary creature with a long neck that can stretch or shrink at will