(in US copyright law) the doctrine that brief excerpts of copyright material may, under certain circumstances, be quoted verbatim for purposes such as criticism, news reporting, teaching, and research, without the need for permission from or payment to the copyright holder.
（美国版权法）合理使用，正当使用
whether or not six seconds of the song in a user-generated video constitutes fair use is something for a court to decide
Example sentencesExamples
The copyright law concept of fair use is often used as a justification for access.
Some lawyers claim that fair use is merely a defense to a claim of copyright infringement.
They claim that file copying is a form of fair use, which is legal under copyright law.
The music industry considers such file-sharing to be in violation of copyright and fair use laws.
There's a well-known four-part test for determining whether a use is a fair use.
Definition of fair use in US English:
fair use
noun
(in US copyright law) the doctrine that brief excerpts of copyright material may, under certain circumstances, be quoted verbatim for purposes such as criticism, news reporting, teaching, and research, without the need for permission from or payment to the copyright holder.
（美国版权法）合理使用，正当使用
whether or not six seconds of the song in a user-generated video constitutes fair use is something for a court to decide
Example sentencesExamples
The music industry considers such file-sharing to be in violation of copyright and fair use laws.
Some lawyers claim that fair use is merely a defense to a claim of copyright infringement.
They claim that file copying is a form of fair use, which is legal under copyright law.
The copyright law concept of fair use is often used as a justification for access.
There's a well-known four-part test for determining whether a use is a fair use.