The noun 帐户 (zhànghù) means "account" and refers to a registered identity used to access services, especially bank accounts or online accounts. It is interchangeable with the variant 账户. It is widely used in financial, technological, and everyday contexts.
我想开一个新的银行帐户。
Wǒ xiǎng kāi yī gè xīn de yínháng zhànghù.
I'd like to open a new bank account.
请不要把帐户密码告诉别人。
Qǐng bú yào bǎ zhànghù mìmǎ gàosu biérén.
Please don't tell anyone your account password.
他的帐户突然被冻结了,正在联系客服。
Tā de zhànghù tūrán bèi dòngjié le, zhèngzài liánxì kèfú.
His account was suddenly frozen, and he's contacting customer service.