christen
verb [ T ] uk/ˈkrɪs.ən/ us/ˈkrɪs.ən/
(GIVE NAME)
为…施洗礼;（施洗礼时）给…命名
to give a baby a name at a Christian ceremony and make him or her a member of the Christian Church
She's being christened in June. 她将在6月受洗礼。
[ + noun ] She was christened Maria. 她受洗时取名为玛丽亚。
给…起绰号（或雅号）
to give a person a name based on a characteristic that they have
We christened him "Slowcoach" because he took so long to do anything. 我们给他起了个绰号叫“慢车”，因为他干什么都要花很长时间。
(USE FIRST)
informal首次使用;启用
to use something for the first time
I'm going to christen my new walking boots on Saturday. 我打算星期六开始穿我那双新的步行靴。