Synonyms of fortify in English:

fortify


See definition of fortify

verb

1‘the knights fortified their citadel as a defence against raids’

SYNONYMS
build defences round, strengthen with defensive works, secure, protect, surround
rare embattle, rampart, mound

2‘such a timber enclosure may have been fortified by a masonry wall’

SYNONYMS
strengthen, reinforce, toughen, consolidate, bolster, shore up, brace, buttress, stiffen, support, hold up
ANTONYMS

weaken

3‘he fortified himself with a large tot of rum’

SYNONYMS
invigorate, strengthen, energize, enliven, liven up, animate, vitalize, rejuvenate, restore, revive, refresh
galvanize, dynamize, fire up, rouse, motivate, boost, perk up, stimulate, inspire, pick up, embolden, give courage to, encourage, cheer, hearten, buoy up, reassure, make confident, brace, sustain
informal pep up, buck up, give a shot in the arm to
rare activate, inspirit
ANTONYMS

sedate, subdue

4‘fortified wine’

SYNONYMS
add alcohol to, add spirits to, strengthen
ANTONYMS

dilute

5‘breakfast cereals are fortified with vitamins’

SYNONYMS
add minerals to, add vitamins to, boost, improve
informal beef up