This is the 4026th most frequent Japanese word.
ナツ
"ナツ" (natsu) means "summer" in English.
ナツ here refers to 'summer', indicating the season.
今年のナツはとても暑いですね。
This summer is very hot, isn't it?
ナツ is used as a proper noun, a given name in this context.
彼女の名前はナツです。
Her name is Natsu.
ナツ refers to 'summer' as a time period when something occurs.