This is the 10492nd most frequent Swedish word.
kodnamn
"Codename."
Here, 'kodnamn' is used to signify an alias or secret name assigned to the agent.
Agentens kodnamn är 'Skugga'.
The agent's code name is 'Shadow'.
In this sentence, 'kodnamn' refers to pseudonyms used for concealment or security purposes.
Vi använder kodnamn för att skydda vår identitet.
We use code names to protect our identity.
'Kodnamn' here is used to describe a symbolic name temporarily given to the project for confidentiality.