strengthens

词形变化：

名词: strengthener | 动词过去式: strengthened | 动词过去分词: strengthened | 动词现在分词: strengthening | 动词第三人称单数: strengthens |

同义词：

fortify | brace | reinforce | build up | toughen | heighten | up | restore | nourish | renew | vitalize | buttress | bolster | intensify | energize | harden | invigorate | steel | temper | beef up | exaggerate | mend | recuperate | rally | substantiate | improve | accentuate | convalesce | shoulder | aggrandize | validate | deepen | unite | authenticate | confirm | recover | highlight | revive | heal | concentrate | consolidate | prop up | shore up | relieve | lace | beef | prop | back up | shore | step up | gain strength | build | give | perk up | come around | a | to | get well | step | boost | perk | tone up | come | tone | strength | get | stronger | well | gain | grow | around | back |

反义词：

weaken |