Ignorance vs What i don't know
When to use each in English, with meaning, register, and examples.
Ignorance
Top 2,000 (common)C1noun
What i don't know
Top 3,000 (common)
Most common: Ignorance
| Ignorance | What i don't know | |
|---|---|---|
| Pronunciation | 🇬🇧 /["/ˈɪɡnərəns/"]/🇺🇸 /["/ˈɪɡnərəns/"]/ | 🇬🇧 //wɒt aɪ doʊnt noʊ//🇺🇸 //wɑt aɪ doʊnt noʊ// |
| Meaning | Not knowing something or lacking information. | Things I am not aware of. |
| Example | The danger of ignorance is that people often fail to recognize their own biases. | I can't help you with that; it's just what I don't know. |
| Register | Neutral | Neutral |
| How common | Top 2,000 (common) | Top 3,000 (common) |
| CEFR level | C1 | - |
| Part of speech | noun | |
| Collocations | complete, total, utter, betray, demonstrate, display, due to ignorance, in ignorance (of), in your ignorance | what I don't understand, what I don't remember, what I don't believe |
| Antonyms | knowledge, awareness, understanding | what I do know, knowledge, understanding |
| Common mistakes | Confused with 'ignore' - Ignorance means lack of knowledge, not simply ignoring something., Using inappropriately in polite contexts - It's often seen as rude to call someone ignorant directly. | Confused with 'what I do know'., Misused in affirmative sentences., Used incorrectly as a question. |
| Usage notes | Used to refer to a lack of knowledge or awareness. Can be formal in texts but is generally neutral. Not appropriate in polite conversation to describe someone's lack of knowledge directly. | Use this phrase when expressing uncertainty or lack of knowledge. It's appropriate in both casual and formal conversations. |
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Frequently asked questions: Ignorance vs What i don't know
What's the difference between Ignorance and What i don't know?
Ignorance: Not knowing something or lacking information. What i don't know: Things I am not aware of.
Which is more common: Ignorance and What i don't know?
Ignorance is the most common in everyday English.
Can you show an example of each?
Ignorance: The danger of ignorance is that people often fail to recognize their own biases. What i don't know: I can't help you with that; it's just what I don't know.
Can I use Ignorance and What i don't know interchangeably?
Not always. Ignorance and What i don't know are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.