Optimists : আশাবাদী; আশাবাদী ব্যক্তি; আশাবাদী দার্শনিক; মঙ্গলবাদী;
Related Words
optimistic  optimistically  optimists  See Words Also In
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Appropriate Prepositions
Affection for(স্নেহ): She has a great affection for the child.
Hinge on/upon (নির্ভর করা): The whole matter hinges upon this clue.
Lost in (মগ্ন): Simon is lost in meditation.
Noted for (বিখ্যাত): She is noted for dancing.
Repent on (নির্ভরশীল): He is repent on his parents.
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Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
Lion’s share (বড় মাপের অংশ): He took the lion’s share of the profit.
Set free (মুক্ত করা): The prisoners were set free.
To meet trouble half-way (পুরোপুরি মোকাবেলার আগেই হাল ছেড়ে দেয়া): He met trouble half way after getting the instructions.
Well off (স্বচ্ছল) - Jim and Della were not well off.