noun · the weight of an empty vehicle, machine, or structure

这台机器的自重约为两百公斤。

adjective · to conduct oneself with dignity and self-respect

请你自重，不要在这里胡言乱语。

adjective · to increase one's own power or influence, often to become more independent or difficult to control, as in the idiom 拥兵自重 yōng​bīng​zì​zhòng

将军拥兵自重，拒不听从朝廷的调遣。