Definition:
A legal entity, typically a business, that is defined as detached from another business or individual with respect to accountability. A separate legal entity may be set up in the case of a corporation or a limited liability company, to separate the actions of the entity from those of the individual or other company.
Meaning:
If a business is a separate legal entity, it means it has some of the same rights in law as a person. It is, for example, able to enter contracts. In New Zealand, a company is a separate legal entity from its owners (shareholders) and can, for example, be sued, and enter into contracts in the name of the company, not the shareholders. Sole traders and partnerships are not separate legal, entities from the owners.
Some Business entities like corporation, LLC can exist separately from its owners. In a common language that a corporation is a separate entity of its owners and corporation itself is an entity like human being created through legal or official process.
Corporation lives and does its activities at its own existences and is treated in its own capacity. It does the business, it generates the revenue, it can incur losses, it hires the employees and it pays its own taxes.
It is a better form of existence for the reason it takes its responsibilities itself, owners are free from their personal liabilities and owners enjoy limited personal liability (risk) only up to their investments in stocks, though there may be certain situations where their personal responsibilities can exceed from limited liability concept.
Separate Entity Concept is better choice and it has better features because corporation enjoys separate entity concept, has indefinite life (perpetual). Management and ownership may change but corporation will exist indefinitely at its own existence, unless it is officially dissolved or merged.
Corporation has a better scope for large & multiple businesses,