Definition of "Flock" :

noun: a group of birds

noun: a group of sheep or goats

noun: a church congregation guided by a pastor

noun: an orderly crowd

noun: (often followed by of') a large number or amount or extent

verb: come together as in a cluster or flock

verb: move as a crowd or in a group

"Tourists flocked to the shrine where the statue was said to have shed tears."