Definition of swift. (Entry 1 of 5) 1 : moving or capable of moving with great speed a swift runner. 2 : occurring suddenly or within a very short time a swift transition. 3 : quick to respond : ready.

Swift 1. Characterized by great celerity:#N#breakneck, expeditious, fast, fleet, quick, rapid, speedy.#N#Informal:... 2. Accomplished in very little time:

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SWIFT. Society for Worldwide Interbank Financial Telecommunications. Global communication network that facilitates 24-hour secure international exchange of payment instructions between banks, central banks, multinational corporations, and major securities firms.

SWIFT is an organization that supplies secure messaging services and software to financial institutions. SWIFT is a dedicated computer network to support funds transfer messages internationally between over 900 member banks worldwide.