首次

Traditional form:

首次

Pinyin (reading):

shǒucì

Definitions:

• first
• first time
• for the first time

Characters:

• 首 - chief, head, leader
• 次 - order, sequence; second, next; one after the other

Traditional characters:

• 首 - chief, head, leader
• 次 - order, sequence; second, next; one after the other