Make stronger:
— He reinforced the concrete.

synonym: reenforce.

Roget 37: add, annex, affix, superadd^†, subjoin, superpose; clap on, saddle on; tack to, append, tag; ingraft^†; saddle with; sprinkle; introduce etc. (interpose) 228; insert etc. 300.    become added, accrue; advene^†, supervene.    reinforce, reenforce, restrengthen^†; swell the ranks of; augment etc. 35.    ... show more

Roget 707: aid, assist, help, succor, lend one's aid; come to the aid etc. n.. of; contribute, subscribe to; bring aid, give aid, furnish aid, afford aid, supply aid etc. n.; give a helping hand, stretch a hand, lend a helping hand, lend a hand, bear a helping hand, hold out a hand, hold out a helping hand; give one a life, give one a cast, give one a turn; take by the hand, take in tow; help a lame dog over a stile, lend wings to.    relieve, rescue; set up, set agoing^†, set on one's legs; bear through, pull through; give new life to, be the making of; reinforce, reenforce, recruit; set forward, put forward, push forward; give a lift, give a shove, give an impulse to; promote, further, forward, advance expedite, speed, quicken, hasten.    support, sustain, uphold, prop, hold up, bolster.    cradle, nourish; nurture, nurse, dry nurse, suckle, put out to nurse; manure, cultivate, force; foster, cherish, foment; feed the flame, fan the flame.    serve; do service to, tender to, pander to; administer to, subminister to^†, minister to; tend, attend, wait on; take care of etc. 459; entertain; smooth the bed of death.    oblige, accommodate, consult the wishes of; humor, cheer, encourage.    second, stand by; back, back up; pay the piper, abet; work for, make interest for, stick up for, take up the cudgels for; take up the cause of, espouse the cause of, adopt the cause of; advocate, beat up for recruits, press into the service; squire, give moral support to, keep in countenance, countenance, patronize; lend oneself to, lend one's countenance to; smile upon, shine upon; favor, befriend, take in hand, enlist under the banners of; side with etc. (cooperate) 709.    be of use to; subserve etc. (instrument) 631; benefit etc. 648; render a service etc. (utility) 644; conduce etc. (tend) 176.    ... show more

Roget 159: be strong etc. adj., be stronger; overmatch.    render strong etc. adj.; give strength etc. n.; strengthen, invigorate, brace, nerve, fortify, sustain, harden, case harden, steel, gird; screw up, wind up, set up; gird up one's loins, brace up one's loins; recruit, set on one's legs; vivify; refresh etc. 689; refect^†; reinforce, reenforce etc. (restore) 660.    ... show more

Roget 660: return to the original state; recover, rally, revive; come come to, come round, come to oneself; pull through, weather the storm, be oneself again; get well, get round, get the better of, get over, get about; rise from one's ashes, rise from the grave; survive etc. (outlive) 110; resume, reappear; come to, come to life again; live again, rise again.    heal, skin over, cicatrize; right itself.    restore, put back, place in statu quo [Lat.]; reinstate, replace, reseat, rehabilitate, reestablish, reestate^†, reinstall.    reconstruct, rebuild, reorganize, reconstitute; reconvert; renew, renovate; regenerate; rejuvenate.    redeem, reclaim, recover, retrieve; rescue etc. (deliver) 672.    redress, recure^†; cure, heal, remedy, doctor, physic, medicate; break of; bring round, set on one's legs.    resuscitate, revive, reanimate, revivify, recall to life; reproduce etc. 163; warm up; reinvigorate, refresh etc. 689.    make whole, redintegrate^†; recoup etc. 790; make good, make all square; rectify, correct; put right, put to rights, set right, set to rights, set straight; set up; put in order etc. (arrange) 60; refit, recruit; fill up, fill up the ranks; reinforce.    repair; put in repair, remanufacture, put in thorough repair, put in complete repair; retouch, refashion, botch^†, vamp, tinker, cobble; do up, patch up, touch up, plaster up, vamp up; darn, finedraw^†, heelpiece^†; stop a gap, stanch, staunch, caulk, calk, careen, splice, bind up wounds.    ... show more

Strengthen and support with rewards:
— Let's reinforce good behavior.

synonym: reward.

Dutch: versterken, verhogen, vergroten