o.n.o.

剑桥词典

written abbreviation for or near(est) offer : used in advertisements for things that people are trying to sell to show that they will accept slightly less money than the price they are asking for
（用於廣告中表示可以接受稍低的價格）或接近的價格，可還價（or near(est)的縮寫）
Ladies' bike - excellent condition . £80 o.n.o. 女士車——性能良好。價格：80英鎊，可議價。 返回 o.n.o.