1. The ultimate or complete failure and breakdown of a system, structure, organization, or person, marking the end of its existence or function
The final collapse of the Roman Empire occurred in 476 AD.
O colapso final do Império Romano ocorreu em 476 d.C.
2. A sudden and complete loss of strength, consciousness, or physical stability
After weeks of illness, she suffered a final collapse.
Após semanas de doença, ela sofreu um colapso final.