Constant efforts to achieve something means-

- উল্লেখিত প্রশ্নের সঠিক উত্তর 'Perseverance'

এছাড়াও-
• Chanting of magic spells — Incantation
• Chief of a group of workmen — Foreman
• Clues available at the scene — Circumstantial
• Code of diplomatic etiquette and precedence — Protocol
• Commencement of adjacent words with the same letter — Alliteration
• Conferred as an honour — Honorary

Source: Website Lecture.