顶

go against
most
peak
top
to replace
to substitute
a measure word (use with "hat")

蹀, 堞, 瓞, 垤, 叠, 谍, 蝶, 喋喋不休, 碟子, 订书机, 疔, 玎, 钉, 盯, 叮, 仃, 丁, 叮?声, 叮铃, 丁云, 顶点, 顶端, 顶多, 顶峰, 顶梁柱, 顶事, 顶替, 顶用, 顶针, 顶住, 定, 订, 锭, 啶, 碇, 铤, 订单, 订购, 订购者, 订婚,