紧集

Traditional form:

緊集

Pinyin (reading):

jǐnjí

Definitions:

• compact set

Characters:

• 紧 - tense, tight, taut; firm, secure
• 集 - to gather, to collect; set, collection

Traditional characters:

• 緊 - tense, tight, taut; firm, secure
• 集 - to gather, to collect; set, collection