A Certain Place
noun
No surprises here. A certain place is a certain place.
This word uses the on'yomi for both kanji, and you learned those readings with the kanji. You should be able to read this on your own.
栃木県の某所で行われたイベントに行ってきました。
I went to an event held at a certain place in Tochigi Prefecture.
昨夜、某所にて、有名人による太鼓の演奏会が行われたようです。
Last night, there was a taiko performance by a celebrity at a certain place.
彼女と出会ったのは、都内某所の居酒屋で食事をしている時だった。
I was eating at an izakaya in a certain place in Tokyo when I met my girlfriend.