Costless : মূল্যহীন;
Related Words
casteless  castles  costless  costliest  cutlass  See Words Also In
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Appropriate Prepositions
Cope with(সামলানো বা পেরে উঠা): They cannot cope with the situation.
Full of (পরিপূর্ণ): Our Rivers are full of fishes.
Hard of (কানে খাটো বা কম শোনা): Ratan is a hard of hearing.
Heir of (উত্তরাধিকারী): He is the heir of his father.
Satisfied with (সন্তুষ্ট): The authoress was highly satisfied with Jerry.
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Idioms
After all - (সব কথার পরেও): I rang and told her I couldn't come after all.
All at once - (হঠাৎ): I feel terribly sleepy all at once.
Put up with (সহ্য করা - tolerate): I could not put up with his behavior.
Short temper (রগচটা)— He is a man of short temper.
Weal and woe (সুখ-দুঃখ): Human life is full of weal and woe.