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verbgive a healthy elasticity to
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"This exercise will strengthen your upper body" "strengthen the relations between the two countries"verbmake strong or strongerOpposite:
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"His body strengthened"verbgain strengthOpposite:type of:
Synonyms & Similar Words
back change proof tone exercise secure steady confirm alter brace stabilize reinforce modify strengthening consolidate toughen sandbag fortify batten substantiate stabilise buttress restrengthen vitalize tone up work out beef up brace up reenforce ruggedise ruggedize batten down undergird vitalise strengthener