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

The tracking station is part of NASA’s Deep Space Network, operating in concert with similar facilities in California and Australia to provide global coverage as Earth’s rotation brings the planets, stars, and deep space probes in and out of view. — Stephen Clark, ArsTechnica, 24 July 2026

The probe’s findings were presented to LAPD leadership, who recommended that Cancino be fired and sent to a disciplinary hearing. — Los Angeles Times, 24 July 2026

Verb

Anna’s attitude speaks to the jealousy that fuels the movie’s wider narrative – Jack is adored, largely inappropriately, by all the members of his family – while his father’s probing highlights a warped sense of entitlement. — CNN Money, 17 July 2026

The interview with Conde was conducted by NBC News anchor Tom Llamas, so corporate synergy generally prevailed over probing questions. — Dade Hayes, Deadline, 15 July 2026