Analysis vs Investigation

When to use each in English, with meaning, register, and examples.

Analysis

Top 1,000 (very common)B1noun

Investigation

Top 2,000 (common)B2noun
Most common: Analysis
 AnalysisInvestigation
Pronunciation🇬🇧 /["/əˈnæləsɪs/","/əˈnæləsiːz/"]/🇺🇸 /["/əˈnæləsɪs/","/əˈnæləsiːz/"]/🇬🇧 /["/ɪnˌvestɪˈɡeɪʃn/"]/🇺🇸 /["/ɪnˌvestɪˈɡeɪʃn/"]/
MeaningA careful study of something to understand it better.Looking into something to find out more about it.
ExampleThe analysis of the data revealed some interesting trends.The police launched an investigation into the missing person's case.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1B2
Part of speechnounnoun
Collocationscareful, close, comprehensive, carry out, conduct, do, indicate something, reveal something, show something, in an/​the analysis, in the final analysis, in the last analysis, careful, close, comprehensive, carry out, conduct, do, indicate something, reveal something, show something, in an/​the analysis, in the final analysis, in the last analysiscareful, close, detailed, carry out, conduct, pursue, demonstrate something, reveal something, show something, on investigation, under investigation, investigation into, the subject of an investigation, careful, close, detailed, carry out, conduct, pursue, demonstrate something, reveal something, show something, on investigation, under investigation, investigation into, the subject of an investigation
Antonymssynthesis, ignorancedisregard, neglect, overlook
Common mistakesConfused with 'analyze' - remember 'analysis' is the noun., Using 'analyses' incorrectly in singular contexts., Omitting 'of' when saying what the analysis is about.Confused with 'invest' which means to put money into something., Using 'investigation' as a verb instead of a noun., Mixing up 'investigation' with 'inspector', which refers to a person.
Usage notesCommonly used in academic and professional contexts. Avoid using in casual conversation unless referring to a specific analysis informally.Use 'investigation' in formal contexts, like police work or research. Avoid in casual conversations.

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Analysis
Investigation

Frequently asked questions: Analysis vs Investigation

What's the difference between Analysis and Investigation?

Analysis: A careful study of something to understand it better. Investigation: Looking into something to find out more about it.

Which is more common: Analysis and Investigation?

Analysis is the most common in everyday English.

Which is more advanced: Analysis and Investigation?

Investigation is the highest level, at B2, on the CEFR scale.

Are Analysis and Investigation the same CEFR level?

Analysis: B1, Investigation: B2 on the CEFR scale.

What part of speech are Analysis and Investigation?

Analysis: noun, Investigation: noun.

Can you show an example of each?

Analysis: The analysis of the data revealed some interesting trends. Investigation: The police launched an investigation into the missing person's case.

Can I use Analysis and Investigation interchangeably?

Not always. Analysis and Investigation 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.

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