Problem: Word: mine

Sentence 1: This diamond comes from a mine in South Africa.

Sentence 2: He came out of the coal mine with a face covered in black.

Same meaning?
A: the same meaning

Problem: Word: case

Sentence 1: The teaching consists of theory lessons and case studies.

Sentence 2: A door case.

Same meaning?
A: different meanings

Problem: Word: block

Sentence 1: Block a garment.

Sentence 2: He blocked the basketball player's shot.

Same meaning?
A: different meanings

Problem: Word: masquerade

Sentence 1: A beggar's masquerade of wealth.

Sentence 2: I was invited to the masquerade at their home.

Same meaning?
A:
the same meaning