Inventor is the standard term used in English to refer to someone who invents or has invented something new. Here are some related terms and phrases:

1. Inventor – The primary term for someone who creates a new device, process, or product.

2. Designer – Often used when referring to someone who designs something, which may or may not be a new invention.

3. Creator – A more general term that can be used for someone who brings something into existence, which could include inventors.

4. Innovator – Someone who introduces new ideas, methods, or products that bring about significant changes.

5. Pioneer – A person who is among the first to engage in a new activity, industry, or field, often associated with innovation.

6. Founder – Typically used when referring to the person who establishes a new organization, company, or movement, which may involve inventing something.

7. Developer – Someone who designs and builds something, which could be an invention or a new technology.

8. Engineer – A professional who applies scientific and mathematical knowledge to design and build structures, machines, devices, and systems, which may include inventions.

9. Researcher – A person who conducts research, which could lead to the discovery or invention of new things.

10. Scientist – A person who conducts scientific research and experiments, which may result in new inventions or discoveries.

11. Inventive – An adjective used to describe someone or something that is creative and original, often in the context of invention.

12. Novelty – A new and original invention or creation.

13. Patent – A legal document that grants an inventor exclusive rights to an invention for a limited period of time.

14. Prototype – An early sample or model of a new invention, used to test and refine the design.

15. Patent holder – The person or entity that holds the legal rights to a patented invention.

These terms can be used interchangeably in certain contexts, but they often carry slightly different connotations or are more specific to certain aspects of the invention process.