Synonyms of probe

probe 1 of 2

noun

ˈprōb 

as in investigation

a systematic search for the truth or facts about something

a congressional probe into the accusations

Synonyms & Similar Words

• investigation
• inquiry
• probing
• examination
• exploration
• study
• research
• inspection
• inquisition
• inquest
• probation
• delving
• survey
• disquisition
• questionnaire
• audit
• examen
• interrogation
• quest
• diagnosis
• hearing
• question
• trial
• checkup
• query
• poll
• feeler
• challenge
• check
• grilling
• reinvestigation
• cross-examination
• rehearing
• quiz
• soul-searching
• questionary
• self-examination
• going-over
• self-reflection
• self-scrutiny
• self-questioning
• self-exploration

probe

2 of 2

verb

1

as in to investigate

to search through or into

tabloid reporters who seem determined to probe every detail of the singer's private life

Synonyms & Similar Words

• investigate
• explore
• examine
• research
• look (into)
• inquire (into)
• inspect
• scan
• dig (into)
• delve (into)
• study
• check into
• check up on
• view
• sift
• skim (through)
• thumb (through)
• peruse
• surf
• browse
• reinvestigate
• cruise

2

as in to explore

to go into or range over for purposes of discovery

probing the depths of the undersea trench

Synonyms & Similar Words

• explore
• search
• prospect
• hunt
• discover
• skirr
• reveal
• disclose
• scout
• unearth
• reconnoiter
• plumb
• fathom
• sound

Synonym Chooser

How does the verb probe differ from other similar words?

Some common synonyms of probe are enter, penetrate, and pierce. While all these words mean "to make way into something," probe implies penetration to investigate or explore something hidden from sight or knowledge.

probed the depths of the sea

When is it sensible to use enter instead of probe?

In some situations, the words enter and probe are roughly equivalent. However, enter is the most general of these and may imply either going in or forcing a way in.

entered the city in triumph

When is penetrate a more appropriate choice than probe?

The meanings of penetrate and probe largely overlap; however, penetrate carries a strong implication of an impelling force or compelling power that achieves entrance.

the enemy penetrated the fortress

When might pierce be a better fit than probe?

While in some cases nearly identical to probe, pierce means an entering or cutting through with a sharp pointed instrument.

pierced the boil with a lancet

Example Sentences

Recent Examples of probe

Noun

Rival taxi service Zoox faced a probe three years ago after self-certifying its own steering-wheel-free cabs. — Bernard Condon, Fortune, 5 Sep. 2026

But efforts to widen the probe met resistance from others inside OpenAI, including legal advisers, according to four people familiar with the matter. — Reuters, NBC news, 4 Sep. 2026

Verb

New research is bringing sound sleep health into the gut-adjacent conversation, using genetic methodology to probe whether insomnia, sleep duration and daytime napping causally influence hemorrhoid risk. — Samantha Agate, Fort Worth Star-Telegram, 3 Sep. 2026

Set against the backdrop of political dishonesty and the country’s abandonment of ideals, the book probes questions about how to be an artist in the world. — Literary Hub, 2 Sep. 2026