一緒【いっしょ】
together, at the same time, same, identical
緒【お】
cord, strap, thong, string (of a musical instrument, bow, etc.)
情緒【じょうちょ】
emotion, feeling, atmosphere, mood, spirit
由緒【ゆいしょ】
history, pedigree, lineage
緒戦【しょせん】
beginning of hostilities, beginning of competition, first match (in a series)