Painless : যন্ত্রণাহীন;
Related Words
painless  panels  penniless  See Words Also In
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Appropriate Prepositions
Absent from(অনুপস্থিত থাকা): I was absent from the class yesterday.
Apathy towards (অনাগ্রহ): The student has great apathy towards his studies.
Die for (আত্নত্যাগ করা): Our Chairman died for our country.
Satisfied with (সন্তুষ্ট): The authoress was highly satisfied with Jerry.
Work with (কারো সাথে কাজ করা): They will be working with me on the new project.
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Idioms
Let loose (বল্গাহীনভাবে ছেড়ে দেয়া): He let his horse loose in the field.
Make hay while sun shines (ঝোপ বুঝে কোপ মারা) You should try to make hay while sun shines.
Make head or tail – (মাথামুন্ডু বুঝা) – I cannot make head or tail of what you say.
Turn down (refuse, প্রত্যাখান করা) —He turned down my proposal.
Without fail (অবশ্যই) - You must attend the meeting without fail.