Vinegar (noun)

A sour liquid that is made by fermenting alcohol and is used as a condiment or preservative.

Origin:

From the french "vinaigre" meaning "sour wine".

Examples:

1. She used vinegar to pickle cucumbers.
2. He added a splash of vinegar to his salad dressing.
3. Vinegar is an important ingredient in many marinades and sauces.
4. He cleaned the kitchen counter with a mixture of water and vinegar.
5. The recipe calls for a cup of vinegar to be added to the pot roast.