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

As they say in the trade.

They are accused of conspiring to constrain trade.

A: different meanings

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

Set up an experiment.

Set the table.

A: the same meaning

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

Do you want to work after the age of 60?

He works his parents for sympathy.

A:
different meanings