What does DIG mean?

verb

1. turn up, loosen, or remove earth“Dig we must”
2. create by digging“dig a hole”
3. work hard“She was digging away at her math homework”
4. remove, harvest, or recover by digging“dig salt”
5. thrust down or into“dig the oars into the water”
6. remove the inner part or the core of“the mining company wants to excavate the hillside”
7. poke or thrust abruptly“he jabbed his finger into her ribs”
8. get the meaning of something“Do you comprehend the meaning of this letter?”