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> Open-source software (OSS) is computer software that is released under a license in which the copyright holder grants users the rights to use, study, change, and distribute the software and its source code to anyone and for any purpose.[1][2]

https://en.wikipedia.org/wiki/Open-source_software

The OSI once applied to the USPTO for a trademark on "open source" and was denied [1].

[1] https://opensource.org/pressreleases/certified-open-source.p...

This is fine, but you don't get to decide what people mean when they say "open source", and usually they mean this definition.