Pay load and Warhead

Warhead and pay load are semantically related. In some cases you can use "Warhead" instead a noun phrase "Pay load".

Warhead noun - The front part of a guided missile or rocket or torpedo that carries the nuclear or explosive charge or the chemical or biological agents.

Pay load and warhead are semantically related. Sometimes you can replace phrase "Pay load" with "Warhead", this terms are similar.