noun
access code
A code used to gain entry to a system, service, or physical location. Common in IT, security, and everyday contexts.
会議室に入るにはアクセスコードが必要です。
You need an access code to enter the meeting room.
オンラインバンキングのアクセスコードを忘れてしまった。
I forgot my online banking access code.
Variant with interpunct; less common in everyday writing.
パスワード is a password, often a secret word or string used for authentication. アクセスコード is a broader term for any code granting access, which may be numeric or alphanumeric and is not necessarily secret.
暗証番号 specifically refers to a personal identification number (PIN), usually numeric. アクセスコード can be any type of access code, including alphanumeric strings.
Loanword from English 'access code'.