search; lookup; hunt; (item of) research; exploration; investigation
detective; investigator; sleuth; detective work; secret investigation
probe; inquiry; enquiry; investigation
detective team; study group; club
detective bureau; detective agency; investigation firm
research; investigation; enquiry; inquiry; study
exploration party; expedition team
phone trace; detecting the source of a telephone call
inquisitive mind; spirit of inquiry; spirit of enquiry
local commissioner (Kamakura or Muromachi eras); draw to find the theme for poetry session; composing poetry by lot
detective work; detective industry
searching; hunting for news story; journalist
unmanned probe (vessel, spacecraft, etc.)
manned mission (e.g. space probe)
seabed probe; probe of the ocean floor; submarine prospecting
Mars lander; Mars rover; Mars probe
strict search; sharp lookout
private inquiry; private enquiry; secret investigation
automatic direction finder; ADF
electronic locator; metal detector
smoke alarm; smoke detector
scanning surface; test surface
seismic mineral exploration
attributing a sequence number (packet, message, etc.)
ultrasonic test equipment
ultrasonic test instrument
search tree; decision tree
exploratory excavation; prospecting
penetrant inspection; PI; penetrant examination; penetrant test