Interrogation vs Probe

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

Interrogation

FormalTop 5,000 (fairly common)

Probe

Top 2,000 (common)C1noun
Most formal: InterrogationMost common: Probe
 InterrogationProbe
Pronunciation🇬🇧 //ɪnˌtɛrəˈɡeɪʃən//🇺🇸 //ɪnˌtɜːrɪˈɡeɪʃən//🇬🇧 //prəʊb//🇺🇸 //proʊb//
MeaningAsking someone many questions to get information.A tool to investigate or explore something deeply.
ExampleThe police conducted a thorough interrogation of the suspect.The scientists sent a probe to study the surface of Mars.
RegisterFormalNeutral
How commonTop 5,000 (fairly common)Top 2,000 (common)
CEFR level-C1
Part of speechnoun
Collocationspolice interrogation, long interrogation, intense interrogation, interrogation techniques, hostile interrogationspace probe, medical probe, investigative probe, deep probe
Antonymssilence, calmnessignore, avoid
Common mistakesConfusing with 'interrogate' which is the verb form., Using it in informal settings where simpler terms like 'questioning' are better., Assuming it's always negative; it can be neutral in investigative contexts.Confused with 'probe' as a verb instead of a noun., Used too generically; may not be appropriate in informal contexts.
Usage notesUsed mainly in legal contexts. Avoid in casual conversations. It implies a serious or intense questioning.Used in scientific and technical contexts, as well as metaphorically in discussions about examining issues. Not commonly used in casual conversation.

See it in real clips

Interrogation
Probe

Frequently asked questions: Interrogation vs Probe

What's the difference between Interrogation and Probe?

Interrogation: Asking someone many questions to get information. Probe: A tool to investigate or explore something deeply.

Which is more formal: Interrogation and Probe?

Interrogation is the most formal of these.

Which is more common: Interrogation and Probe?

Probe is the most common in everyday English.

Can you show an example of each?

Interrogation: The police conducted a thorough interrogation of the suspect. Probe: The scientists sent a probe to study the surface of Mars.

Can I use Interrogation and Probe interchangeably?

Not always. Interrogation and Probe 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.

Related comparisons