Painless : যন্ত্রণাহীন;
Related Words
painless  panels  penniless  See Words Also In
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Appropriate Prepositions
Concern with (জড়িত থাকা): Asif is not concerned with this conspiracy.
Control over(নিয়ন্ত্রণ): He has no control over his sons.
Count upon(নির্ভর করা): He always counts upon your help for this work.
Lost in (মগ্ন): Simon is lost in meditation.
Regard for (সম্মান): Good boys have great regard for their teachers.
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Idioms
As a rule (নিয়ম অনুসারে.) As a rule, she kept silent in the meeting.
Brown study (দিবাস্বপ্ন): The girl is absorbed in a brown study.
Do yeoman’s service (বিশেষ উপকার করা): Freedom fighters have done yeoman’s service for country.
Put up with (সহ্য করা - tolerate): I could not put up with his behavior.
Take to heart (মর্মাহত হওয়া)- He really took it to heart when I asked him to reconsider.