Plural of Diagnosis

TLDR

Singular and Plural Forms

The plural diagnoses is pronounced /ˌdaɪ.əɡˈnoʊ.siːz/ (dye-uh-NO-seeze).

Confusing Plural Forms Exercise

This exercise focuses on confusing plural forms, including Diagnosis.

How to Use "Diagnosis" in Sentences

Singular Example:

✅ The doctor gave her a diagnosis of diabetes.
✅ His diagnosis was confirmed after further tests.

Plural Example:

✅ The hospital handles many diagnoses every day.
✅ Several diagnoses were considered before deciding on treatment.

Common Mistakes

❌ "Diagnosises" (Incorrect) – The correct plural is diagnoses.
❌ "One diagnose" (Incorrect) – The singular is diagnosis, not diagnose (which is a verb).
❌ "A diagnoses" (Incorrect) – Diagnoses is plural, so it cannot take "a".

When to Use "Diagnosis"

1. In Medicine – "His cancer diagnosis was early, which helped with treatment."

2. In Psychology – "The psychologist provided a diagnosis of anxiety disorder."

3. In Problem-Solving – "The mechanic’s diagnosis revealed a faulty engine."

FAQs

What is the plural form of diagnosis?

The plural of diagnosis is diagnoses.

How do you pronounce "diagnoses"?

It is pronounced /ˌdaɪ.əɡˈnoʊ.siːz/ (dye-uh-NO-seeze).

Do we say "this diagnosis is" or "these diagnosis are"?

• Singular: "This diagnosis is correct."

• Plural: "These diagnoses are serious."

What is the difference between "diagnosis" and "diagnose"?

• Diagnosis = noun (e.g., "The doctor made a diagnosis.")

• Diagnose = verb (e.g., "The doctor will diagnose the patient.")

Other Confusing Plural Cases