Definition: A very large company or organization.（Oxford dictionary）（巨头）

Example: What do these two business giants have in common?

Working with a base of small businesses through to corporate giants, Mr. Weir said: ‘It's exciting for me to be at the forefront of technology.

Definition: An important or powerful person, especially in the film or media industry. （Oxford dictionary）（（尤指新闻、影视界的）大人物；大亨）

Example: Why are you down on all these big, powerful media moguls?

Hip hop artists have now morphed into businessmen and media moguls

Definition: A wealthy and influential businessman or businesswoman. （Oxford dictionary）（大亨、巨头）

Example: The extravagant mansions built on the island of Syros reflect the wealth of these early magnates.

Kings and magnates claimed considerable portions of pasture and forest, and there were many disputes concerning their use.

Definition: A wealthy, powerful person in business or industry.（Oxford dictionary）（巨头，大亨（工商界））

Example: He knew as well as I did that we are up against not just a business tycoon but a powerful politician.

The tech-savvy leaders may convince business tycoons to bear the financial burden.

Definition: A large corporation formed by the merging of separate and diverse firms. （Oxford dictionary）（联合大公司；企业集团）

Example: Indeed, his words have proved true, as present-day giant media corporations and media conglomerates attest.

Now public opinion has come under the control of corporate conglomerates whose primary interest is profit.

Definition: Something enormous, especially a large and powerful organization. （Oxford dictionary）（巨头（指规模庞大、实力雄厚的公司或机构））

Example: Shoppers are now more loyal to their local shops than to faceless behemoths.

You mean the huge corporate behemoths have been lying to us?

Definition: A person or thing of very great strength, intellect, or importance. （Oxford dictionary）（巨人；巨头；巨擘）

Example: The break-up reduced the political clout of a corporate titan.

The titans of Renaissance literature: Spenser, Shakespeare, Donne and Milton.