স্থিরচেতা: [adjective] Single-minded; steady; constant.
Related Words
স্থায়িতা  স্থির তারা  স্থিরচেতা  স্থিরনেত্র  স্থিরযৌবন  See Words Also In
1.Google-Translator 2.Wikipedia 3.Wiktionary.org
Appropriate Prepositions
Authority on(বিশেষজ্ঞ পন্ডিত): Kamal was an authority on English literature.
By heart (মুখস্থ): Kamal learnt to poem by heart.
Consent to(মত দেওয়া): The Prime Minister consented to the proposal.
Inquire into (খতিয়ে দেখা): The police officer will inquire into the matter.
Play on (বাজানো): They play on the piano.
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Idioms
Arm in arm (পরস্পর সম্পর্কিত বিষয়) All good people should live arm in arm with one another.
At one’s elbow (near at hand — হাতের কাছে – adv.) His private secretary is always at his elbow.
Brown study (day dream-দিবাস্বপ্ন -n) The woman is absorbed in a brown study.
Hold water (ধোপে টেকা): This policy will not hold water in this situation.
Liable to mislead (প্রতারণাপূর্ণ- deceptive): Appearances can often be liable to mislead.