Unnerve : সাহসশূন্য বলশূন্য করা; শক্তিহীন করা; নিবীর্য বা দুর্বল করে দেওয়া; ঘাবরে দেওয়া;
Related Words
un ravel  unnerve  unnerved  unnerves  unnerving  unravel  unraveled  unravels  unripe  unrivaled  unrobe  See Words Also In
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Appropriate Prepositions
Call on(কারও সাথে দেখা করা): I called on him in his office.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Look after (দেখাশুনা): He looks after me.
Play on (বাজানো): They play on the piano.
Subsist on (বেঁচে থাকা): The poor subsist mainly on rice and pulses.
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Idioms
At ease (in peace or pleasure – শান্তিতে বা আরামে) A man who has enemies can not live at ease.
At times (মাঝে মাঝে): He at times comes here.
Bear in mind (মনে রাখা): Always bear in mind that you are a daughter of a reputed person.
Flesh and blood (রক্তমাংসের শরীর): She's my own flesh and blood; I can't believe she treated me that way!
Make both ends meet (আয় ব্যয় মেলানো): I cannot make both ends meet with my small income.