Q: Does "line" have the same meaning in the following two sentences?

A dedicated line.

The letter consisted of three short lines.

A: different meanings

Q: Does "open" have the same meaning in the following two sentences?

Vermont will open elk hunting season next week.

An opportunity opened up.

A: different meanings

Q: Does "period" have the same meaning in the following two sentences?

A time period of 30 years.

Hastened the period of time of his recovery.

A:
the same meaning