Q: Sentence (1) Dig salt.
Sentence (2) Dig coal.. Word: dig.
==--==
A: the same meaning

Q: Sentence (1) The Union action of emancipating Southern slaves.
Sentence (2) Recent federal action undermined the segregationist position.. Word: action.
==--==
A: the same meaning

Q: Sentence (1) She didn't want to answer.
Sentence (2) This may answer her needs.. Word: answer.
==--==
A:
different meanings