This is the 7785th most frequent Chinese word.
開戶
"開戶" means "to open an account."
The term '開戶' is being used here as 'open an account,' referring to the process of setting up a financial account, such as in a bank.
請問我要如何開戶？
Excuse me, how can I open an account?
The word '開戶' refers to the completed action of opening an account, preparatory to further actions such as setting up credentials.
開戶之後，你需要設定密碼。
After opening an account, you need to set a password.
In this sentence, '開戶' functions as a noun form, describing the process or service of account setup.