探査（たんさ、tansa）
- exploration

The Japanese word 探査 探査 means "investigation," "exploration," "probe," or "search." It refers to the act of examining, investigating, or exploring something, often with the goal of gathering information or discovering something new. This can involve a wide range of activities, from scientific research and data analysis to physical exploration of a location or object. The purpose of 探査 is usually to uncover information that is not readily available.

⚫︎宇宙探査 Translation: Space exploration ⚫︎地質探査 Translation: Geological survey/exploration ⚫︎データ探査 Translation: Data analysis/exploration

⚫︎探査 is used in formal and informal contexts. ⚫︎It's suitable when discussing scientific research, investigating problems, or exploring new areas. ⚫︎The context determines the specific nuance. For example, 宇宙探査 implies scientific and technological exploration of space. ⚫︎It can be used in written and spoken Japanese.

⚫︎The word is written using kanji and hiragana: 探査. ⚫︎探 (tan) means "to search" or "to investigate." ⚫︎査 (sa) means "to investigate" or "to examine." ⚫︎The reading is たんさ (tansa) in hiragana. ⚫︎There are no significant variations in the okurigana.

⚫︎調査（ちょうさ）：Investigation, survey. More general term than 探査 ⚫︎研究（けんきゅう）：Research, study. ⚫︎探索（たんさく）：Exploration, searching (similar to 探査 but often implies a search for something lost or hidden.)

There aren't direct antonyms, as 探査 describes an action rather than a state. However, the opposite of the activity could be considered: ⚫︎放置（ほうち）：Abandonment, leaving something untouched. ⚫︎無視（むし）：Ignoring, disregarding.

科学者たちは火星の探査を行うために新しい技術を開発した。 ・Translation: The scientists developed new technologies to conduct an exploration of Mars. ・Explanation: This sentence demonstrates 探査 used in a scientific context, referring to exploring a planet.

警察は事件の原因を探査するために証拠を調べている。 ・Translation: The police are examining evidence to investigate the cause of the incident. ・Explanation: This sentence illustrates 探査used in the context of an investigation.

The word 探査 is a compound word formed from two kanji: 探 (tan) meaning "to search" or "to explore," and 査 (sa) meaning "to investigate" or "to examine." The combination of these characters creates the meaning of a detailed search or investigation to gather information.