If you were the first one to reach the finish line in gym class, the coach might have called you swift. Swift means quick or fast-moving. A glance, a current, even a decision can be swift.

You can use the adjective swift to describe things that move or happen rapidly and smoothly. Deciding to borrow a parent's car without permission could result in swift punishment. Foxes are so swift that if you leave the chicken coop open for a moment, one might slip in. Conversely, if innuendo sails over your head, your friends might say, “You’re not too swift on the uptake, are you?” A swift is also a small bird that looks a lot like a swallow.

Definitions of swift

adj moving very fast

“a swift current”
swift flight of an arrow”
“a swift runner”
acting or moving or capable of acting or moving quickly

n a small bird that resembles a swallow and is noted for its rapid flight

Apus apus, European swift
common European bird with a shrieking call that nests chiefly about eaves of buildings or on cliffs
Chateura pelagica, chimney swallow, chimney swift
American swift that nests in e.g. unused chimneys
Collocalia inexpectata, swiftlet
swift of eastern Asia; produces the edible bird's nest
Type of:
apodiform bird
nonpasserine bird having long wings and weak feet; spends much of its time in flight

n common western lizard; seen on logs or rocks

Sceloporus occidentalis, blue-belly, western fence lizard
Type of:
fence lizard
spiny lizard often seen basking on fences in the United States and northern Mexico

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