1. A computer programming language devised to work with Apple and Linux operating systems.

2. A bird (family Apodidae) with a short bill and very large gape, which feeds on insects that it catches in flight. Swifts are the most aerial of all birds, seldom alighting, and among the fastest, with wings rotating from the shoulder, which contributes to their high manoeuvrability. Most have long, crescent-shaped wings and a short, forked tail. There are about 100 species, found on all continents except Antarctica.