Definition of "fortify" in English

verb

To give power, strength, or vigour to (oneself or someone, or to something); to strengthen.
To support (one's or someone's opinion, statement, etc.) by producing evidence, etc.; to confirm, to corroborate.
To increase the nutritional value of (food) by adding ingredients, especially minerals or vitamins.
- Soy milk is often fortified with calcium.
To impart fortitude or moral strength to (someone or their determination, or something); to encourage.
To make (something) defensible against attack by hostile forces.
To make (something) structurally strong; to strengthen.
To increase the defences of (an army, soldiers, etc.), or put (it or them) in a defensive position.
To secure and strengthen (a place, its walls, etc.) by installing fortifications or other military works.
To provide (a city, a fortress, an army, etc.) with equipment or soldiers.
To add spirits to (wine) to increase the alcohol content.
- Sherry is made by fortifying wine.
To install fortifications or other military works; also (sometimes figurative), to put up a defensive position.
To become strong; to strengthen.
(ambitransitive, linguistics) To undergo, or cause to undergo, fortition.