This is the 7502nd most frequent Japanese word.
入梅
The Japanese word "入梅" means "the start of the rainy season."
Here '入梅' refers to the factual occurrence or beginning of the rainy season.
今年は例年より早く入梅しました。
This year, the rainy season started earlier than usual.
In this sentence, '入梅' is used to indicate the nearing or anticipation of the rainy season.
入梅が近いので、傘を準備した方がいいですね。
Since the rainy season is approaching, it's better to prepare an umbrella.
Here '入梅' refers to the period marking the rainy season itself.