from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make strong, as:
- transitive v. To strengthen and secure (a position) with fortifications.
- transitive v. To reinforce by adding material.
- transitive v. To impart physical strength or endurance to; invigorate.
- transitive v. To give emotional, moral, or mental strength to; encourage: Prayer fortified us during our crisis.
- transitive v. To strengthen or enrich (food, for example), as by adding vitamins.
- intransitive v. To build fortifications.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To increase the defenses of.
- v. To impart strength or vigor to.
- v. To increase the effectiveness of, as by additional ingredients.
- v. To strengthen mentally or morally.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To add strength to; to strengthen; to confirm; to furnish with power to resist attack.
- transitive v. To strengthen and secure by forts or batteries, or by surrounding with a wall or ditch or other military works; to render defensible against an attack by hostile forces.
- intransitive v. To raise defensive works.
from The Century Dictionary and Cyclopedia
- To make strong; strengthen; increase the force of in any way; especially, to furnish with means of resistance.
- Specifically, to surround with defensive works, with a view to resist the assaults of an enemy; strengthen and secure by walls, batteries, or other means of defense: render defensible against attack: as, to fortify a city, town, or harbor.
- To raise strongholds or defensive works.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. make strong or stronger
- v. enclose by or as if by a fortification
- v. add alcohol to (beverages)
- v. add nutrients to
- v. prepare oneself for a military confrontation
Middle English fortifien, from Old French fortifier, from Late Latin fortificāre, from Latin fortis, strong; see bhergh-2 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)