This is the 994th most frequent Bulgarian word.
единият
"Единият" means "the one" (used to refer to one of two things or people).
The word 'единият' is used here as the subject of the sentence, referring to one of a specified pair or group (brothers).
Единият от братята ми е лекар.
One of my brothers is a doctor.
In this sentence, 'единият' is used to emphasize one option or method out of two possibilities.
Единият начин да стигнеш там е с кола, а другият е пеша.
One way to get there is by car, and the other is by walking.
The word 'единият' here indicates one specific item (chair) out of a pair or set.