Правильно перевести на . for example, in the metonymy part for whole meanings change from 2 referring to a part to referring to a whole, but not the other way around. although the reverse metonymy, whole for part also exists as an active metonymy across languages, the question of unidirectionality seeks to find out whether languages name human limbs with unidirectional (such as part for whole only) or bidirectional (such as both part for whole and whole for part) metonymies.
