All-time : অপূর্ব; অভূতপূর্ব; সর্বকালীন;
Related Words
al-time  all time  all-time  allot ment  allotment  allotments  alltime  altime  altimeter  altimetry  See Words Also In
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Appropriate Prepositions
Adhere to (লেগে থাকা, অটল থাকা): You should adhere to your principal.
Breakdown of (বিস্তারিত): Here is statistical breakdown of data.
Call on(কারও সাথে দেখা করা): I called on him in his office.
Innocent of (নির্দোষ): The maid servant was proved innocent of the alleged theft.
Relevant to (প্রাসঙ্গিক): Your answer is not exactly relevant to my question.
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Idioms
Bird’s eye view - (ভাসা ভাসা দৃশ্য, হালকাভাবে দর্শন): We took a bird’s eye view of the scenery.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Out of order (বিকল): The elevator was out of order.
To the backbone (to the core, হাড়ে হাড়ে) —The boy is wicked to the backbone.
Weal and woe (সুখ-দুঃখ): Human life is full of weal and woe.