Flock
noun
This is the noun version of the kanji, making it flock.
むれ
A flock? A flock of cows (む)! Imagine a flock of cows, probably flying like birds, because flocks usually have something to do with birds.
春にヨーロッパ旅行をした時に、生まれて初めて真っ白な羊の群れを見ました。
When I traveled to Europe during the spring, I saw a flock of white sheep for the first time in my life.