IPA: /ˈswɒləʊteɪl/
KK: /ˈswɑloʊˌteɪl/
A type of large, colorful butterfly known for its distinctive tail-like extensions on its hind wings, belonging to the family Papilionidae.
The swallowtail fluttered gracefully among the flowers in the garden.
Swallowtail → The word is formed from "swallow" (from Old English *swelgan*, meaning to engulf or consume) and "tail" (from Old English *tægel*, meaning the rear part of an animal). The term "swallowtail" refers to a type of butterfly that has tail-like extensions on its hindwings, resembling the tail of a swallow bird.
Imagine a butterfly with 'tail-like' features that 'engulfs' the air as it flies, just like a swallow bird does.
No commonly confused words.