冴える

verb (ichidan)さえる · saeru

1. Englishto be clear (of a sight, sound, colour, etc.); to be bright; to be vivid; to be crisp

   • 満月が空にさえている。A full moon is shining bright in the sky.

2. Englishto be clear-headed; to be alert; to be on the ball; to be wide awake

   • 昨日ゆっくり休んだ分、今日は頭が冴えている。I feel smart today, to a degree that is in proportion to the amount of good rest I had yesterday.

3. Englishto look upbeat; to be perky; to be cheerful

4. Englishto master (a skill); to excel at; to cleanly execute

5. Englishto be satisfying

6. Englishto become frigid; to become intensely cold

Source: JMdict (EDRDG) · CC BY-SA 4.0 (EDRDG)