“Nathan Drake looked around and found an opening in the roof of the cavern.”
“The wall had collapsed, creating an opening into the castle.”
“This opening only comes once in a lifetime. The moment you own it, you better never let it go.”
openness
Accommodating attitude or opinion, as in receptivity to new ideas, behaviors, cultures, peoples, environments, experiences, etc., different from the familiar, conventional, traditional, or one's own.
The degree to which a person, group, organization, institution, or society exhibits this liberal attitude or opinion.
(computing) degree of accessibility to view, use, and modify computer code in a shared environment with legal rights generally held in common and preventing proprietary restrictions on the right of others to continue viewing, using, modifying and sharing that code.
(systems theory) The degree to which a system operates with distinct boundaries across which exchange occurs capable of inducing change in the system while maintaining the boundaries themselves.