LNU(redirected from L.N.U.)
An initialism of "last name unknown," used especially in law enforcement. Sometimes spelled "Lnu," especially when used in combination with "Fnu" ("first name unknown"). The report lists the suspect's name as John LNU. The court docket names "Fnu Lnu" as the primary suspect in the murder case.
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.