An entity means anything that is real or can be thought of as one whole thing. It can be a person, object, or thing you can know or see.
The book is a separate entity here.
Each cloud is an entity in the sky.
In law, an entity is a group or organization that has official rights. Many businesses or governments are entities with legal power.
The company is a legal entity now.
The church is an entity under law.
A philosophical entity is something that exists by itself. It has its own reality and is not part of something else.
Humans are entities with minds.
Each entity has its own nature.
In computers, an entity is something with information in a database or software. It has its own identity and data that describe it.
Each user is an entity in the system.
The entity stores data in the database.
In language, an entity is what a noun talks about. It is a thing or idea mentioned by words.
The word 'cat' refers to an entity.
Entities in language name things or ideas.
In science, entity means a thing or unit that exists physically or as an idea. It can be studied or measured.
An atom is a small entity in matter.
Entities in physics have mass or energy.