/səbˈstænʃəl sɪˈmɪlærəti/ – Phrase
Definition: Tương đồng đáng kể.
A more thorough explanation: in copyright law, one test (=a way of discovering whether something has a particular quality) for whether there has been copyright infringement (=the breaking of a rule); copyright infringement can be found when the challenged work is similar enough to the protected work
Example: Alvin Kennedy and his company, Crazy Boy Inc, claim Fowler Press’s “Diary of a Crazy Kid” has substantial similarity with his popular series.