Longstanding : দীর্ঘকালস্থায়ী;
Related Words
long standing  long-standing  longstanding  See Words Also In
1.Google-Translator 2.Dictionary.com 3.Merriam-Webster 4.Wikipedia 5.Thesaurus.com
Appropriate Prepositions
Acquit of (অব্যাহতি দেয়া): The chief justice acquitted him of the charge of murder.
Compensate for(ক্ষতিপূরণ করা): I will compensate him for the loss.
Devote to (উৎসর্গ করা/নিয়োজিত করা): Students should devote sufficient time to their studies.
Dwell upon (আলোচনা করা): They dwell long upon the matter.
Smile on/upon (অনুগ্রহ করা): Fortune smiles on/upon the brave.
Browse All Appropriate Prepositions
Idioms
At all (in the least degree – মোটেও না) There is no water at all in the pond.
In the wake of (ঠিক পরে): Police came in the wake of the accident.
On the contrary (বিপরীত পক্ষে): I do not hate him; on the contrary I love him.
Silver living (hope- আশা বা ভালো দিক): Every cloud has a silver lining.
With the sweat of one’s brow (মাথার ঘাম পায়ে ফেলে) — He earns his livelihood with the sweat of his brow.