alias

He was using an alias in an attempt to evade detection.

They each sued the school district under the alias “Jane Doe,” and each was referred to in court by her first name only.

“Gents,” Sexton wrote, “I’m going to handle booking our friend back under his true alias.”

Undetected for a year, Bester then allegedly lived under an alias in South Africa's main city, Johannesburg, helped by his partner.

The BBC is using an alias because her family belongs to an ethnic and religious minority group facing persecution in Afghanistan.