The fixative is used to preserve the specimen.

I need to fix my car.

That would leave me in a fix.

The position of the camera is fixed.

The hotel room had all the necessary fixings.

I'm in a fix and don't know what to do.

Fixed odds betting allows you to know your potential winnings before placing a bet.

The fixed satellite provides continuous coverage of a specific location on Earth.

The fixed star is the source of light and heat in our solar system.

He comes from a well-fixed family.