Ph.D.: meaning, definitions and examples

academic degree

A Ph.D. is a doctoral degree that is awarded to individuals who have made a significant and original contribution to their field of study. It is the highest academic qualification one can achieve and is typically earned after several years of research and the completion of a dissertation.

Doctor of Philosophy, doctorate.

Which Synonym Should You Choose?

Word	Description / Examples
Ph.D.	Commonly used in both spoken and written communication to refer to someone who has completed a doctoral degree in a specific discipline. Often used to signal high academic achievement. She earned her Ph.D. in Physics from MIT. He is pursuing a Ph.D. in Economics.
Doctor of Philosophy	This term is often used in formal or academic writing, such as university records, official documents, or applications. It fully spells out the nature of the degree. She holds a Doctor of Philosophy in Linguistics. The university offers several Doctor of Philosophy programs.
doctorate	A broader, less specific term that can be used in both spoken and academic contexts to refer to any doctoral degree, not necessarily a Ph.D. He completed his doctorate last year. A doctorate is required for many advanced research positions.

Examples of usage

• Alice spent five years conducting research for her Ph.D. in Chemistry.

• John defended his Ph.D. thesis in front of a panel of experts.

• The Ph.D. program requires students to publish their research in peer-reviewed journals.

• Receiving a Ph.D. opens up many career opportunities in academia and industry.

• After earning his Ph.D., David was offered a teaching position at a prestigious university.