All weaken antonyms

verb weaken

• strengthen — to make stronger; give strength to.
• fortify — to protect or strengthen against attack; surround or provide with defensive military works.
• aid — Aid is money, equipment, or services that are provided for people, countries, or organizations who need them but cannot provide them for themselves.
• assist — If you assist someone, you help them to do a job or task by doing part of the work for them.
• compliment — A compliment is a polite remark that you say to someone to show that you like their appearance, appreciate their qualities, or approve of what they have done.
• develop — When something develops, it grows or changes over a period of time and usually becomes more advanced, complete, or severe.
• encourage — Give support, confidence, or hope to (someone).
• enlarge — Make or become bigger or more extensive.
• expand — explain
• extend — Cause to cover a larger area; make longer or wider.
• grow — to increase by natural development, as any living organism or part by assimilation of nutriment; increase in size or substance.
• help — to give or provide what is necessary to accomplish a task or satisfy a need; contribute strength or means to; render assistance to; cooperate effectively with; aid; assist: He planned to help me with my work. Let me help you with those packages.
• increase — to make greater, as in number, size, strength, or quality; augment; add to: to increase taxes.
• praise — the act of expressing approval or admiration; commendation; laudation.
• prolong — to lengthen out in time; extend the duration of; cause to continue longer: to prolong one's stay abroad.
• raise — to move to a higher position; lift up; elevate: to raise one's hand; sleepy birds raising their heads and looking about.
• rise — to get up from a lying, sitting, or kneeling posture; assume an upright position: She rose and walked over to greet me. With great effort he rose to his knees.
• achieve — If you achieve a particular aim or effect, you succeed in doing it or causing it to happen, usually after a lot of effort.
• activate — If a device or process is activated, something causes it to start working.
• aggravate — If someone or something aggravates a situation, they make it worse.
• agitate — If people agitate for something, they protest or take part in political activity in order to get it.
• animate — Something that is animate has life, in contrast to things like stones and machines which do not.
• clean — Something that is clean is free from dirt or unwanted marks.
• energise — Alternative form of energize.
• energize — Give vitality and enthusiasm to.
• enhance — Intensify, increase, or further improve the quality, value, or extent of.
• excite — Cause strong feelings of enthusiasm and eagerness in (someone).
• free — enjoying personal rights or liberty, as a person who is not in slavery: a land of free people.
• improve — to bring into a more desirable or excellent condition: He took vitamins to improve his health.
• incite — to stir, encourage, or urge on; stimulate or prompt to action: to incite a crowd to riot.
• invigorate — to give vigor to; fill with life and energy; energize.
• purify — to make pure; free from anything that debases, pollutes, adulterates, or contaminates: to purify metals.
• refresh — to provide new vigor and energy by rest, food, etc. (often used reflexively).
• succeed — to happen or terminate according to desire; turn out successfully; have the desired result: Our efforts succeeded.
• win — to finish first in a race, contest, or the like.
• build up — If you build up something or if it builds up, it gradually becomes bigger, for example because more is added to it.