This is the 979th most frequent Turkish word.
fay
A fault or fracture in the earth's crust.
In this sentence, 'fay' refers to a geological fault line, indicating a tectonic boundary.
Fay hattı üzerinde yaşayanlar depreme karşı hazırlıklı olmalı.
Those living on the fault line should be prepared for earthquakes.
This usage again connects 'fay' to geological phenomena, specifically activities associated with tectonic faults.
Bazı araştırmacılar depremle fay aktiviteleri arasındaki ilişkiyi inceliyor.
Some researchers study the relationship between earthquakes and fault activities.
Here, 'fay' is used to mean 'benefit' or 'advantage,' showcasing its usage in a context of usefulness.