What does 一撃 mean?
一撃 is a Japanese noun meaning “one blow; one hit; one stroke” in English. It can also be translated as “summiting on the first attempt (oft. without prior knowledge about the route; in climbing)” depending on context. It is written as 一撃 in kanji, いちげき in hiragana, and ichigeki in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
私は彼の耳に一撃を与えた。
I dealt him a blow on the ear.