Often used for spy activities where identity and purpose are hidden.

Espionage Context

Can imply being hidden for safety or strategic reasons, not just secrecy.

Protective Concealment

Refers to physical coverage that offers shelter or protection from elements.

Can be used when someone or something is physically concealed from view.

Often describes police or intelligence work done secretly.

Specifies agents or cops not in uniform, blending in with the environment.

Stresses the surreptitious nature of certain actions or tasks.

Used when acquiring information without drawing attention.