swift
How to Use Swift
Learner’s notesIn plain EnglishFast — whether describing an action, a decision, or the bird named for its rapid flight.
Word Forms
swifter comparative, more swift comparative, swifts plural, swiftest superlative, most swift superlative
Fill the Gap
Can you complete this real example?
The police made a _____ arrest after the robbery.
Etymology
From Old English swift, "quick" — related to swivel, both tracing back to a root meaning "to twist or wind."