This is the 8446th most frequent Japanese word.
憂い
"憂い" (urei) means "grief," "sorrow," or "distress."
憂い is used as a noun indicating a sense of worry or concern.
彼は未来について憂いを抱いている。
He harbors worry about the future.
憂い is describing an emotional quality, showing worry or sadness in the facial expression.
憂いを帯びた表情で彼女は窓の外を見ていた。
She gazed out the window with a worried expression.
憂い is used metaphorically to indicate the absence of worry or sadness, emphasizing a wish for happiness.