紧闭

Traditional form:

緊閉

Pinyin (reading):

jǐnbì

Definitions:

• to close securely
• tightly closed
• secure

Characters:

• 紧 - tense, tight, taut; firm, secure
• 闭 - to shut, to close; to obstruct, to block

Traditional characters:

• 緊 - tense, tight, taut; firm, secure
• 閉 - to shut, to close; to obstruct, to block