• Bengali Word বিকল্প English definition (noun) 1 alternative; substitute. 2 option. 3 alternative concept; difference of perception. 4 doubt; hesitation. 5 collateral form. 5 dilemma. 7 (grammar) variant; doublet. 8 (philosophy) antithesis of opposites; fancy. 9 false notion. বিকল্প প্রমাণ (noun) alternative proof. বিকল্পন (noun) substitution; allowing an option/ alternative; use of a collateral form. বিকল্পিত (adjective) prepared; arranged; substituted; doubtful.