This is the 4373rd most frequent Japanese word.
古谷
"古谷" (Furuya) is a Japanese surname meaning "old valley."
In this sentence, 古谷 ('Furuya') is used as a proper noun referring to a person's name.
古谷は駅の近くに住んでいます。
Furuya lives near the station.
Here, 古谷 ('Furuya') refers to a family name common in a specific area.
この辺りでは古谷という家が多いです。
In this area, there are many families named Furuya.
In this sentence, 古谷 ('Furuya') refers to a place or an entity with historical significance.