Problem: Word: monitor

Sentence 1: The police monitor the suspect's moves.

Sentence 2: We are monitoring the air quality.

Same meaning?
A: the same meaning

Problem: Word: mouth

Sentence 1: He rode into the mouth of the canyon.

Sentence 2: She wiped lipstick from her mouth.

Same meaning?
A: different meanings

Problem: Word: play

Sentence 1: Play safe.

Sentence 2: Play it safe.

Same meaning?
A: the same meaning

Problem: Word: pay

Sentence 1: It will pay to wait.

Sentence 2: To pay attention.

Same meaning?
A:
different meanings