Untiring : অক্লান্ত; ক্লান্ত হয় না এমন;
Related Words
undermining  untiring  untiringly  See Words Also In
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Appropriate Prepositions
Afraid of(ভীত): An honest man is not afraid of telling the truth.
Ascend to (আরোহণ করা): karim began to ascend to the surface of wakefulness.
Careful of(যত্নশীল থাকা): Sadia is careful of her health.
Depend on (নির্ভর করা): Presently, the students depend on/upon guide books.
Hope for (আশা করা): Let us hope for the best.
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Idioms
Fight shy of (এড়িয়ে যাওয়া): Honest boys always fight shy of bad and dishonest friends.
Moot point (অমীমাংসিত বিষয়): Dowry system is still a moot point in Bangladesh.
Put up with (সহ্য করা - tolerate): I could not put up with his behavior.
Square meal (পেট ভরা আহার): He is too poor to have a square meal everyday.
See to (বিবেচনা করা)— Can you see to it that everyone gets a copy of this memo?