This is the 3074th most frequent Turkish word.
bel
"Bel" in Turkish means "waist" or "lower back."
In this sentence, 'bel' refers to the lower back, emphasizing posture.
Otururken belinizi düz tutun.
Keep your back straight while sitting.
Here, 'bel' denotes the waist, particularly in the context of wearing clothing.
Bu kemer, beli çok güzel sarıyor.
This belt fits the waist very nicely.
In this example, 'bel' is used metaphorically to describe the ridge of the mountain, comparing a feature of geography to the shape of a waist or lower back.