Question: "unit" used in the same way in the following two sentences?

After the battle the soldier had trouble rejoining his unit.

The coach said the offensive unit did a good job.
Answer: the same meaning
Question: "swing" used in the same way in the following two sentences?

The party went with a swing.

He took a wild swing at my head.
Answer: different meanings
Question: "work" used in the same way in the following two sentences?

I will work hard to improve my grades.

They worked on the task.
Answer: the same meaning
Question: "seat" used in the same way in the following two sentences?

The seat of a saddle.

He sat on the arm of the chair rather than the seat, which always annoyed his mother.
Answer:
the same meaning