稲妻（いなずま、inazuma）
- lightning

The Japanese word 稲妻 (いなずま, inazuma) primarily means "lightning" or "lightning flash". It refers to the bright flash of light that appears in the sky during a thunderstorm. It can also figuratively represent something sudden and striking.

⚫︎ 雷稲妻が光った。 Translation: The lightning flashed. ⚫︎ 激しい稲妻が夜空を切り裂いた。 Translation: Intense lightning split the night sky. ⚫︎ 彼女の稲妻のようなアイデアは、私たちを驚かせた。 Translation: Her lightning-like idea surprised us.

⚫︎ 稲妻 is used to describe the visual phenomenon of lightning. ⚫︎ It's also used metaphorically to describe something sudden, quick, or striking. ⚫︎ It is generally used in formal and informal situations.

⚫︎ The word is usually written with the kanji 稲妻. ⚫︎ The hiragana reading is いなずま (inazuma). ⚫︎ 稲妻 itself does not have any variations in the okurigana.

⚫︎ 雷光 (らいこう, raikou) - "lightning" (more formal) ⚫︎ 電光 (でんこう, denkou) - "lightning flash"

⚫︎ While there isn't a direct antonym, words describing the absence of light or the calm before/after a storm could be considered opposite in concept. Such as 暗闇 (くらやみ, kurayami) - "darkness"

夏の夕立の際、空に美しい稲妻が見えた。 ・Translation: During the summer shower, we saw beautiful lightning in the sky. ・Explanation: This sentence describes the visual observation of lightning during a summer rainstorm.

稲妻のように、そのニュースは瞬く間に広がった。 ・Translation: Like lightning, the news spread in an instant. ・Explanation: This sentence uses 稲妻 metaphorically to describe the rapid spread of information.

The word 稲妻 is believed to be a combination of two elements: ⚫︎ 稲 (いね, ine) - "rice plants" ⚫︎ 妻 (つま, tsuma) - "wife" or "companion" The literal meaning is "rice plant's wife" (or companion) and originally referred to lightning's effect on rice fields (making the rice plants grow or influencing the harvest), or the association of lightning with the growth of rice plants.