YOM year of marriage 结婚年份
YOD year of death 死亡年份
YB, yrbk yearbook 年报，年鉴
Y.A.R York-Antwerp Rules 约克-安特卫普规则（海险）
Y ex-dividend and sales in full 不计红利，全数出售
you'd 1.you had;2.you would you had 或者you would的缩写
you'll 1.you will；2.you shall you will 或者you shall的缩写
you're you are you are的缩写
you've you have you have的缩写