noun · a rubber covering around a wheel, used as a loanword

我的自行车胎没气了。

measure word · a classifier for the number of births or litters of animals

这只母猫第一胎生了三只小猫。

noun · an unborn offspring in the womb

医生正在检查胎儿的发育情况。

noun · the stuffing or inner lining used in clothing or bedding

这床棉胎非常暖和。