Startup (noun)

1. A company or organization that is in the initial stages of operation.
2. The process of starting a new business.
3. The process of booting a computer or mobile device.

Origin:

Mid-20th century: from start-up.

Examples:

1. She started a startup that makes eco-friendly products.
2. The startup is still in its early stages of development.
3. He is involved in several startup companies.
4. The startup process for the computer took a few minutes.
5. The startup had a successful launch and received funding from investors.