This is the 7169th most frequent Chinese word.
第七十
"第七十" means "seventieth" in English.
Here, '第七十' is used as an ordinal number to indicate sequence.
这是第七十次我告诉你这个事情。
This is the seventieth time I am telling you about this matter.
In this sentence, '第七十' denotes the specific anniversary year, highlighting its ordinal role associated with time.
今天是我们公司成立的第七十个周年纪念日。
Today is the seventieth anniversary of our company's founding.
Here, '第七十' specifies the participant's number in sequence, showcasing its ordinal functionality within a competition or event.