1. having a particular place as a foundation, center of operations, or main location
2. founded on or derived from something

1. past tense and past participle of base

Examples

• The company is based in New York.
• Our team is based at the downtown office.
• The movie is based on a true story.
• Her argument was based on solid evidence.
• The recipe is based on traditional methods.
• He based his decision on careful research.
• The novel is based on the author’s childhood experiences.