Perpetuity : বিরামহীনতা; চিরস্থায়িত্ব; আনন্তর্য; অনন্তকাল; অনন্তকালব্যাপী অধিকার; অনন্ত কাল; চিরস্থায়িত্ব;
Related Words
peripatetic  peripeteia  perpetrate  perpetrated  perpetrating  perpetration  perpetrations  perpetrator  perpetrators  perpetual  perpetuate  perpetuated  perpetuates  perpetuating  perpetuator  perpetuities  perpetuity  prophetic  See Words Also In
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Appropriate Prepositions
Argue with, about(কথা কাটাকাটি করা): They always argue with me about tiny matter.
Careful of (সতর্ক): He is very careful of his fault.
Count on/upon (নির্ভর, বিশ্বাস করা): Rahim count on (upon) my help.
Due to (কারণে): His absence is due to illness.
Famous for (বিখ্যাত): Smith is famous for his wisdom.
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Idioms
Arm in arm (পরস্পর সম্পর্কিত বিষয়) All good people should live arm in arm with one another.
At a discount (অনাদৃত) Female education is no longer at a discount now.
Fish in a troubled water (এলোমেলো অবস্থার সুযোগ নেয়া): He made a lot of money by fishing in a troubled water.
Part and parcel (অবিচ্ছেদ্য অংশ): Education is part and parcel to build a civilized nation.
Pros and cons (খুঁটিনাটি): You should consider the pros and cons of the system.