Meaning

• Any of various medical instruments used to explore wounds, organs, etc.

• Something which penetrates something else, as though to explore; something which obtains information.

• An act of probing; a prod, a poke.

• An investigation or inquiry.

  "They launched a probe into the cause of the accident."

• A tube attached to an aircraft which can be fitted into the drogue from a tanker aircraft to allow for aerial refuelling.

• A small device, especially an electrode, used to explore, investigate or measure something by penetrating or being placed in it.

  "Insert the probe into the soil and read the temperature."

• A small, usually unmanned, spacecraft used to acquire information or measurements about its surroundings.

• (game of go) a move with multiple answers seeking to make the opponent choose and commit to a strategy

• Any group of atoms or molecules radioactively labeled in order to study a given molecule or other structure

Meaning

• To explore, investigate, or question

  "If you probe further, you may discover different reasons."

• To insert a probe into.