1. (Abstract Noun) the act or state of changing drastically in form, appearance, nature, or character

English: alteration, metamorphosis, transformation,
Assamese: পৰিৱৰ্তন, ৰূপান্তৰ, ৰূপান্তৰণ,
Bodo: गुसलायनाय, महर सोलायनाय,
Garo: dintangani,
Santali: do̠lbado̠l