What does 冷戦 mean?
冷戦 is a Japanese noun meaning “cold war; the Cold War” in English. It is written as 冷戦 in kanji, れいせん in hiragana, and reisen in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
冷戦はソビエトの崩壊と共に終わった。
The Cold War ended when the Soviet Union collapsed.