မိုးကြိုး
雷（かみなり）、落雷（らくらい）、雷雨（らいう）
thunder, lightning strike, thunderstorm
On-reading (ライ) is used in compounds; kun-reading (かみなり) is used standalone or with okurigana. Appears in many compounds — memorize the key ones rather than the kanji in isolation.
