群
グン, む.れる, む.れ, むら, むら.がる, ぐり, ぐ, こお, こおり, ごうり
flock, group, crowd, herd, swarm, cluster
JLPT2 G5 S13 F1012
As per
君
# (group) +
羊
sheep → *flock* of sheep → *group*; *crowd*; *herd*; *swarm*; *mob*; *throng*; *cluster*.
[Full Kanji Etymology List]