1. moving or capable of moving at the highest speed; fastest
Usage: superlative form of ‘swift’
2. happening or occurring in the shortest time; most rapid
Usage: superlative form of ‘swift’

Examples

• The cheetah is the swiftest land animal.
• She chose the swiftest route to the airport.
• The swiftest runner won the race easily.
• Technology provides the swiftest means of communication.
• The swiftest response came from the emergency team.
• He made the swiftest decision of his career.