1. margarine
Would you prefer margarine or butter?
Do you prefer butter or margarine?
We substitute margarine for butter.
You can use margarine as a substitute for butter.
Did you mistake the margarine for butter?
Can you tell butter from margarine?
There was a tub of margarine in the fridge.
Can you pass me the low-fat margarine?
That's not butter. It's margarine.
2. marge
Marge works for the Royal Bank of Scotland.
We all knew that Bob was on a wild-goose chase after Marge, because she was already happily engaged.