serious; severe; grave; acute
mystery; something inexplicable; unfathomable (of a Buddha's abilities); 10^64 (or 10^80)
irritating; aggravating; upsetting
circumference; girth; surroundings; neighbourhood; people surrounding oneself; surrounding circumstances
to come to mind; to pop into one's head
to be lit (e.g. candle, lamp, light bulb); to be lighted; to be burning
war potential; military strength; fighting power; ability (to compete); capabilities; valuable asset
traditional ordering of the Japanese syllabary; fundamentals; the ABCs of ...
falling asleep; sleep onset
performance; appearance (in a stage, film, TV show, etc.)