From H6605; an {aperture} that {is} (figuratively) utterance: - opening.
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Matrix
Jdg 3:25And they tarried till they were ashamed: and, behold, he opened not the doors of the parlour; therefore they took a keyH4668, and opened them: and, behold, their lord was fallen down dead on the earth.
1Ch 9:27¶ And they lodged round about the house of God, because the charge was upon them, and the openingH4668 thereof every morning pertained to them.
Isa 22:22And the keyH4668 of the house of David will I lay upon his shoulder; so he shall open, and none shall shut; and he shall shut, and none shall open.