Flock, a group of animals, a herd, especially of sheep or goats
Flock (birds), a group of birds, either in flight, or while feeding
Flock, a large number of people, or a crowd
Flock, a Christian congregation
Flock, a tuft of wool or cotton fiber, woolen or cotton refuse used for stuffing furniture and mattresses
Flock, finely powdered fibres used to produce a velvety surface texture such as on Flock wallpaper: see flocking (texture)
Flock (web browser), a free and open-source web browser based on Mozilla Firefox; also the company developing it
Flock (sculpture), a sculpture by Michael Christian
Flock system call, used for file locking
Flock (album), the third album by Irish band Bell X1
The Flock (band), a progressive rock band fronted by violinist Jerry Goodman
The Flock (film), a film starring Richard Gere
The Flock (novel), a novel by James Robert Smith
The Flock, also known as Raven's Nest, a large stable in World Championship Wrestling headed by Raven
Flock (video game), a video game by Capcom
I like this game. It's fun.