伍 （ゴ） company, group, class, troop, rank, file

五 （ゴ） five, 5

隊伍 （タイゴ） rank (of troops), line, formation, array, procession

落伍 （ラクゴ） straggling, falling behind, being left behind, dropping out, falling behind the ranks, falling out of line

五つ （いつつ） five, five years of age, eight o'clock (old time system)