A name used to hide one's real identity; can range from a casual alias to a criminal alias.
He checked into the hotel using a false name.
He used a false name until he was arrested.
The author publishes novels under a pseudonym.
She gave a false name at the hotel.
It later came out that the reservation had been made under a false name.
偽名 is a fake personal name used to deceive, whereas コードネーム is an officially assigned code name used for secrecy in operations or projects.
匿名 means anonymity, i.e. giving no name at all, whereas 偽名 means giving a specific but false name.
偽名 is a false name used to deceive or hide one's identity, while ペンネーム is openly used by writers and not meant to deceive.
偽名 is a false name used to deceive others, while 仮名 is a neutral term for an assumed name that carries no implication of deception.
Compound of 偽 (false) and 名 (name). The reading ぎめい is the on'yomi of both characters.