Problem: Word: catch

Sentence 1: I have to catch a train at 7 o'clock.

Sentence 2: Catch one's breath.

Same meaning?
A: different meanings

Problem: Word: side

Sentence 1: He turned the box over to examine the bottom side.

Sentence 2: A cube has six sides.

Same meaning?
A: the same meaning

Problem: Word: support

Sentence 1: They developed a scheme of mutual support.

Sentence 2: The government provides support to the arts in several ways.

Same meaning?
A: the same meaning

Problem: Word: be

Sentence 1: When will the meeting be?

Sentence 2: The postman has been today, but my tickets have still not yet come.

Same meaning?
A:
the same meaning