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openness
開放性
Accessibility
Free association
free content
Free software
Glasnost
Open source
Open access: publishing
Open innovation
Open education
Open educational resources
Open-design movement
open government
Open Knowledge Foundation
Open knowledge
Open-mindedness
Open text
Open gaming
open government
Open patent
Open-source curriculum
Open-source governance
Open-source hardware
Open-source journalism
Open-source model
Open standard
Openness to experience
Secrecy: the opposite of openness
The Open Definition
Transparency: openness in a utilitarian view, economic openness, open economic or politic data, degree of openness, etc.

googleopenness
image openness
define openness
wikipedia openness
weblio openness
kotobank openness
jisho openness