► 動詞
一転 [いってん] [一転する] meaning: turn rank: 4
☆ 冬になると彼等は一転して攻勢に転じた ⇨ Once the winter came they turned the tide and launched an offensive (☛ Do a 180 degree turn)
► 名詞
一転 [いってん] meaning: turn rank: 4
☆ 先週は涼しかったのに今週になると一転物凄く暑くなった ⇨ Last week it was cool, but it did a 180 degree turn this week and it is very hot (☛ Do a 180 degree turn)
More examples: