• Bengali Word বর্ধন English definition (noun) increasing; growing; thriving; augmenting; increase; growth; development; expansion; multiplication; augmentation. (adjective) = বর্ধক  বর্ধন করা (verb transitive) increase; grow; augment; enhance; expand; develop; multiply. বর্ধনক্ষম (adjective) capable of being increased/ augmented/developed/expanded. বর্ধনশীল adj growing; developing; expanding; increasing; thriving; prosperous. বর্ধনাঙ্ক (noun) (physics) power (of a lens).