Definition of fortify
: to make strong: such asa : to strengthen and secure (as a town) by forts or batteries <a city fortified by high walls>b : to give physical strength, courage, or endurance to <fortified by a hearty meal>c : to add mental or moral strength to : encourage <fortified by prayer> <fortified by early successes>d : to add material to for strengthening or enriching <fortified milk>
: to erect fortifications
fortifierplay \ˈfȯr-tə-ˌfī(-ə)r\ noun
Examples of fortify in a sentence
fortify a city against attack
a city fortified by high walls
Support for his theories has been fortified by the results of these experiments.
He took a deep breath to fortify himself before stepping onto the stage.
milk fortified with vitamin D
Did You Know?
Medieval cities were fortified against attack by high walls, and volunteers may fortify a levee against an overflowing river by means of sandbags. Foods can be fortified by adding vitamins, but "fortified wines", such as sherry and port, have brandy (a "stronger" drink) rather than vitamins added to them. By adopting good exercise habits, you can fortify your body against illness. And fortifying needn't always be physical. An author's reputation may be fortified by the success of his new book, or a prosecutor can fortify a case against a suspect by finding more evidence.
Origin and Etymology of fortify
Middle English fortifien, from Anglo-French fortifier, from Late Latin fortificare, from Latin fortis strong
First Known Use: 15th century
FORTIFY Defined for English Language Learners
Definition of fortify for English Language Learners
: to strengthen (a place) by building military defenses (such as walls, trenches, etc.)
: to make (someone or something) stronger
: to make (yourself) feel stronger or less fearful
FORTIFY Defined for Kids
Definition of fortify for Students
1 : to make strong <Walls fortified the city against attack.> <Calcium fortifies bones.>
2 : to add material to (something) to strengthen or improve it <The cereal was fortified with vitamins.>
Seen and Heard
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