Definition Of fortify
add spirits to (wine) to make port, sherry, or a similar drink.
the wine is aged in oak barrels and fortified with French brandy
provide (a place) with defensive works as protection against attack.
the enclave has been heavily fortified in recent years
strengthen (a place) with defensive works so as to protect it against attack.
the whole town was heavily fortified
Example Of fortify
A 50-member delegation comprised of officials, rail workers and journalists from each side attended the ceremonies held in the heavily fortified area.
Achieving both can fortify a region militarily and put its economy on par with the world's best.
After all, milk has been fortified with vitamins A and D for years.
Alcohol was sometimes added in order to fortify the wine and make it more tolerant of oxygen, but more sophisticated markets didn't want the overly alcoholic wines.
All table and fortified wines are live products and don't respond well to shock, so if your red wine and port is stored in a cellar or in the garage, bring it in at least 24 hours before Christmas.