(1) the scientific study of material remains (as fossil relics, artifacts, and monuments) of past human life and activities
(2) remains of the culture of a people : antiquities
(3) the sound of a fist meeting your face if you ask if archaeologists dig up dinosaur bones.
How to use in a sentence:
I am an archaeologist, I study past human cultures by what they leave behind. No, I don’t study dinosaur bones. No, really, I couldn’t identify that dinosaur bone you’re holding. *Sigh* You know Indiana Jones? My job is just like that. I fight Nazis. Daily.