Diagnose: Definition, Usage & Common Mistakes

Meaning 1：identify an illness or problem (diagnose)

diagnose 🔊

/ˈdaɪ.əɡ.nəʊz/

To find out what illness a person has or what is wrong with something by carefully checking.

Diagnose meaning illustrated: doctor examining patient's throat in clinic

identify an illness or problem 🔊

➕

/aɪˈdentɪfaɪ ən ˈɪlnəs ɔːr ˈprɒbləm/

To carefully examine and determine the nature of an illness or issue through analysis and observation.

📁 Category：Physical & Mental Health 🔖 Level：Intermediate

📘 Details & Usage

📖 Root Explanation

From Greek 'dia-' meaning 'through' and 'gnosis' meaning 'knowledge', literally 'to know through' or 'to discern'.

💡 Mnemonic

Break it down: 'DIA' for 'through' and 'GNOSE' for 'know' – diagnose means to know through careful examination.

📖 Example

After examining my throat, the doctor was able to diagnose a common throat infection. 🔊 The doctor identified a common throat infection after checking my throat.

🔗 Collocations

diagnose a disease – to identify a specific illness

diagnose the issue – to determine the root cause of a problem

🔄 Synonyms

identify (v.) – to recognize or establish the nature of something

determine (v.) – to ascertain or conclude after consideration

🚫 Antonyms

misdiagnose (v.) – to diagnose incorrectly

🌱 Derivatives

diagnosis (n.) – the identification of an illness or problem

diagnostic (adj.) – relating to the diagnosis

📖 Cultural Story

The term 'diagnose' derives from Greek 'diagnōsis' (discernment), via Latin and French, entering English in the 17th century. Initially medical, it referred to identifying diseases through observation. Today, it is widely used in fields like technology and business to systematically identify issues, reflecting its evolution from health to general problem-solving.