LessonsDefinition and Its Four Forms: Complete/Incomplete Essential and Descriptive DefinitionsQuiz

Learning a synonym for a word and learning what a thing essentially is are different achievements.

“Ghaḍanfar = asad” tells us that two Arabic words denote the lion. This is verbal clarification.
“Human = rational animal” is not just a synonym substitution; it uses genus and differentia to provide an essential account.

The decisive question is whether the statement explains an expression or explains the thing's essence or distinguishing character.

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Knowing a word versus knowing a thing

Definition and Its Four Forms: Complete/Incomplete Essential and Descriptive Definitions

Learning a synonym for a word and learning what a thing essentially is are different achievements.

“Ghaḍanfar = asad” tells us that two Arabic words denote the lion. This is verbal clarification.
“Human = rational animal” is not just a synonym substitution; it uses genus and differentia to provide an essential account.

The decisive question is whether the statement explains an expression or explains the thing's essence or distinguishing character.