flare up

悪化する、激しくなる

落ち着いていた問題や症状などが、突然ひどくなる。

やさしい英語で： To suddenly become stronger or worse, often after a quiet period.

• My back pain flared up again.
• Fighting flared up along the border last night.
• Do your symptoms flare up when you feel stressed?

類義語： intensify, worsen

反対語： ease, subside

よく使う表現： symptoms flare up, tensions flare up, pain flare up

燃え上がる

火が突然、再び明るく激しく燃え始める。

やさしい英語で： If a fire does this, it suddenly burns more brightly again.

• The fire flared up again.
• Flames flared up when she added dry wood.
• Watch out if the coals flare up under the meat.

類義語： blaze up

反対語： die down

よく使う表現： flames flare up, fire flare up

かっとなる、激怒する

急に怒り、その怒りを表に出す。

やさしい英語で： To suddenly become angry and show it.

• She flared up when I laughed.
• He flared up at the suggestion that he had lied.
• Why do you flare up whenever we discuss money?

使い方： flare up at someone/something (He flared up at the slightest criticism.)

類義語： explode, lose your temper

反対語： calm down

よく使う表現： flare up at someone, flare up in anger