Hi, Japanese learners! Today's expression is 秋の訪れ(あきのおとずれ)!
It means "the arrival of autumn". When people feel a bit chilly outside, or feel the scent of autumn flowers, or simply enjoy autumn food, they often use this word!
Ex. さいきん、ちょっと寒いですね。秋の訪れをかんじます。