1.最初的,开始的;原始的;初期的,初发的
1.词首字母,词首大写字母;姓名中的大写字母
1.在...上记上姓名的词首字母,用词首字母在...上署名;【政】草签,临时签署(条约等)
1.happening at the beginning of a process, or when you first see or hear about something; used about the first of several things
1.the first letter of someone’s name, especially their first name; the first letters of all someone’s names; the first letter of a word
1.to write your initials on a document to show that you agree with what it says