I saw — one-eyed man when I was walking on the road.

✅ কেন সঠিক: ‘One’ begins with a ‘w’ sound (wun), a consonant sound, so the article is ‘a’: a one-eyed man.

❌ অন্য অপশন: ‘an’ is used before vowel sounds; ‘the’ would point to a specific man already known; an article is needed here.

💡 মনে রাখুন: Article depends on sound, not spelling: a university, a one-rupee note, an hour.

📖 শব্দার্থ: one-eyed = এক চোখওয়ালা, কানা।