To grow dark at dusk; to enter twilight after sunset.
海辺で黄昏れていると、空の色がどんどん薄れていった。
While I was watching the seaside at dusk, the color of the sky gradually faded.
町は黄昏れ、街灯が一つずつ点き始めた。
The town grew dusk and the streetlights began to come on one by one.
日が沈むと公園が黄昏れて、人影が少なくなった。
After the sun set the park turned to twilight and there were fewer people around.
To decline or wane after a peak; to lose vigour or prominence.
彼の人気はかつてほどではなく、最近は少し黄昏れてきた。
His popularity isn't what it used to be; lately it's been waning.
昔流行した店も時代とともに黄昏れていった。
The shop that used to be popular has faded with the times.
To be lost in thought; to look pensive or melancholic (colloquial).
ベンチに座って黄昏れている彼女の表情はどこか寂しげだった。
She sat on the bench, looking pensive and somewhat lonely.
彼は窓の外を見ながら黄昏れて、何も話さなかった。
He stared out the window, lost in thought, and said nothing.
古い写真を見て黄昏れているうちに、時間が経ってしまった。
I kept getting lost in thought looking at old photos and time passed.