(archaic) thunder / (obsolete) something ferocious and imposing, a demon or devil

a surname

(rare) thunder (the sound) / (rare) lightning, a thunderbolt

(rare, archaic) Short for 雷鳴の壺 (Kannari no Tsubo): one of the five buildings in the imperial palace in 平安京 (Heian-kyō), modern-day Kyoto

a thunder / lightning

stairs used in emergencies

state of emergency (unusually difficult or dangerous situation)

necessary evil

necessity (quality or state of being necessary, unavoidable, or absolutely requisite)

unnecessary