Searching and probing with

探 means “to probe”, “to search”, or “to seek out”. It is used to describe the act of actively trying to find something unknown or hidden.

Etymology

This kanji isa phono-semantic compound comprised of 扌 (hand) as the semantic component and 罙 as the phonetic component (タン).

These invoke imagery of a hand reaching deep into a hidden place, feeling around for something out of sight.

Exploration and Fieldwork

(Exploration)

探検(たんけん) means exploring an unknown or little-known place firsthand, often on an expedition involving some danger.

It combines 探 (explore) with 検 (inspect or examine) to show exploration through close examination.

Manga panel from 名探偵コナン showing example of Exploring a cave in the woods with 探検.
名探偵コナン » Volume 25 » Page 152

During a camping trip, Conan and his friends are out collecting firewood when they happen upon a cave. Seeing the entrance roped off, and an obsure message carved into a rock, Ayumi, Mitsuhiko, and Genta set their gathered sticks on the ground and they head inside.

コナン:
「おいおい お前(まえ)ら…」
“Hey, you guys...”
歩美(あゆみ):
「いーじゃない ちょっと探検(たんけん)するだけだから…」
“It's okay. We're just going to explore a little.”
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Investigation and Detection

(Detective)

探偵(たんてい) means a detective or private investigator who gathers information about people or incidents.

It combines 探 (search) with 偵 (spy or scout) to show a person who searches out hidden information.

Manga panel from 名探偵コナン showing example of Is your dad still a detective with 〜の.
名探偵コナン » Volume 1 » Page 12

Ran seems angry as Shin’ichi basks in the media attention he’s getting for solving a difficult case. When Shin’ichi asks Ran why she’s angry, she points out that it’s because of Shin’ichi that her father’s been getting fewer case requests.

蘭(らん):
「怒(おこ)ってなんかいませんよー!!」
“I'm not at all angry!”
新一(しんいち):
「あれー?蘭(らん)の父(とう)さん、まだ探偵(たんてい)やってたのか?」
“Huh? Your dad was still working as a detective?”
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(Great detective)

名探偵(めいたんてい) means a famous or brilliant detective, especially one known for outstanding deduction and investigative skill. It is common in mystery fiction, where it evokes the image of an exceptional sleuth who solves difficult cases.

It combines 名 (name or fame) with 探偵 (detective) to show a well-known detective.

Manga panel from 名探偵コナン showing example of An incompetent officer with 無能.
名探偵コナン » Volume 7 » Page 8

Police detective Yokomizo isn’t about to let Sasai, his prime murder suspect, leave. Sasai reminds the officer that he has photographic proof that he wasn’t near the victim at the time of the murder. He calls for Detective Mouri to back him up.

笹井(ささい):
「名探偵(めいたんてい)のあなたからもいってやってくださいよ。 この刑事(けいじ)がいかに無能(むのう)かという事(こと)を…」
“You, the great detective, should tell him yourself. Just how incompetent this police detective is...”
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Search and Inquiry

(Exploration)

探索(たんさく) means searching or investigating to find a missing item, unknown information, or a possible solution.

It combines 探 (probe / explore) with 索 (search) to show searching into the unknown.

Manga panel from ふらいんぐうぃっち showing example of Exploring the neighborhood with 探索.
ふらいんぐうぃっち » Volume 1 » Page 91

Not long after moving to a new town to stay with relatives, Makoto decides to head out for a walk. Her cousin is worried she’ll get lost. Makoto says not to worry, because she’ll have her witch familiar cat, Chito, with her.

真琴(まこと):
「実(じつ)はチトさん この辺(へん)を色々(いろいろ)探索(たんさく)してたみたいで私(わたし)よりも土地勘(とちかん)があるんですよ」
“Actually, Chito seems to have explored this area quite a bit, so she knows her way around better than I do.”
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