ଅର୍ଥ : The spreading of something (a belief or practice) into new regions.
ସମକକ୍ଷ : extension
ଅର୍ଥ : The act of producing offspring or multiplying by such production.
ସମକକ୍ଷ : generation, multiplication
ଅର୍ଥ : The movement of a wave through a medium.