This is the 1407th most frequent Japanese word.
奥
"奥" (おく, oku): Inner part, interior, depth, or the back/hidden area of something.
The word '奥' is used to refer to the inner or deeper part of a room or space, beyond what is immediately visible.
この部屋の奥には秘密の扉があります。
At the back of this room, there is a secret door.
Here, '奥' indicates the metaphorical depth within someone's heart or emotions, suggesting something that is hidden or not immediately apparent.
彼女の心の奥にある感情がわからない。
I cannot understand the feelings deep in her heart.
In this sentence, '奥' is utilized to describe a location that is far or deep in the area of the mountains, suggesting a place that requires effort to reach.