Definition of fortify in English:

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Pronunciation: /ˈfôrdəˌfī/

verb (fortifies, fortifying, fortified)

[with object]
1Strengthen (a place) with defensive works so as to protect it against attack: the whole town was heavily fortified (as adjective fortified) a fortified manor house
More example sentences
  • He immediately set up a defensive perimeter and fortified his area.
  • I came in from the sides like a well drilled eighteenth century army attacking some fortified town in the Low Countries.
  • Achieving both can fortify a region militarily and put its economy on par with the world's best.
build defenses around, strengthen, secure, protect
strengthen, reinforce, toughen, consolidate, bolster, shore up, brace, buttress
1.1Strengthen or invigorate (someone) mentally or physically: I was fortified by the knowledge that I was in a sympathetic house
More example sentences
  • Teaching involved so much giving out, and the painting returned to Bill a strength that fortified him for his teaching.
  • This power surged from his heart and dispersed to every cell in his body: it fortified him by strengthening his stamina, and increasing his reflexes.
  • After this brief meeting, we were fortified with some basic knowledge about our surroundings, and we were able to forge ahead to explore on our own.
invigorate, strengthen, energize, enliven, liven up, animate, vitalize, rejuvenate, restore, revive, refresh
informal pep up, buck up, give a shot in the arm to
1.2 (often as adjective fortified) Strengthen (a drink) with alcohol: fortified wine
More example sentences
  • Depending on the style of the wine, sherry is fortified with grape spirit known as aguardiente to between 15.5 and 22 per cent.
  • The family of sweet fortified wines include Port, Madeira, Malmsey, Vermouth and Muscat de Beaumes de Venise.
  • Spirit or fortified wine is heated gently (in a ladle or small pan) until the alcohol it contains begins to vaporize, then ignited, poured over the food, and allowed to burn.
1.3Increase the nutritive value of (food), especially with vitamins.
Example sentences
  • Because many American foods are fortified with vitamin A, deficiency is very rare in individuals who do not have certain chronic intestinal illnesses.
  • The body more readily absorbs folic acid from vitamin supplements and fortified foods than folate from food.
  • Margarine is fortified with added vitamins A and D to bring their levels up to those naturally present in butter.



Pronunciation: /ˈfôrdəˌfīəb(ə)l/
Example sentences
  • Distance from the likely west coast anchorage to the fortifiable peninsula is about 25 nautical miles.
  • School based screening, usually performed by a school nurse, is a fortifiable process for mass screening.
  • If this meant the relinquishment of territory to achieve dominant and fortifiable terrain and features, so be it.


Example sentences
  • In fact, according to the country's regulations on food fortifiers, milk is not on the list of those foods to which calcium can be legally added.
  • Mother's milk alone cannot meet all the nutrient needs of very low birthweight infants, and therefore the addition of a commercial human milk fortifier during early life is recommended.
  • Mix the grout with a mixture of 50/50 water and grout fortifier.


Late Middle English: from French fortifier, from late Latin fortificare, from Latin fortis 'strong'.

Words that rhyme with fortify


For editors and proofreaders

Syllabification: for·ti·fy

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