This is the 4810th most frequent Turkish word.
dörtlü
"Quartet" or "group of four."
Here, 'dörtlü' describes a group consisting of four members.
Arkadaşlarımızla dörtlü bir grup oluşturduk.
We formed a group of four with our friends.
In this sentence, 'dörtlü' refers to a system or mechanism that involves four separate connections or units.
Bu cihazda dörtlü bağlantı sistemi kullanılıyor.
This device uses a quadruple connection system.
Here, 'dörtlü' qualifies an item set, indicating it contains four parts or items.