春しゅん雷らいしゅんらいMeanings1nounspring thunderRefers to thunder that occurs in spring, often associated with the changing of seasons.昨さく夜や、春しゅん雷らいが鳴なった。Last night, there was spring thunder.春しゅん雷らいは不ふ安あん定ていな天てん気きの兆きざしだ。Spring thunder is a sign of unstable weather.