What does the word auxiliary mean?

1, auxiliary, help;

2. People in an auxiliary position;

3. Suggestions.

Example:

1. The main feature of well-trained thinkers is that they don't draw conclusions easily without sufficient evidence.

When the iron content in wine reaches about 2 mg per liter or more, the taste of seafood with wine will go bad.

3. This analysis is supported by gas test and gas production data.