Safety net and Support system

Safety net noun - A large strong net to catch circus acrobats who fall or jump from a trapeze.

Support system and safety net are semantically related In some cases you can use "Support system" instead a noun phrase "Safety net".

Support system noun - A network of facilities and people who interact and remain in informal communication for mutual assistance; a network that enables you to live in a certain style.

Safety net and support system are semantically related in group providing support to members topic. You can use "Safety net" instead a noun phrase "Support system".