All maintain synonyms

verb maintain

• defend — If you defend someone or something, you take action in order to protect them.
• advocate — If you advocate a particular action or plan, you recommend it publicly.
• insist — to be emphatic, firm, or resolute on some matter of desire, demand, intention, etc.: He insists on checking every shipment.
• say — assay.
• hold — to have or keep in the hand; keep fast; grasp: She held the purse in her right hand. He held the child's hand in his.
• declare — If you declare that something is true, you say that it is true in a firm, deliberate way. You can also declare an attitude or intention.
• preserve — to keep alive or in existence; make lasting: to preserve our liberties as free citizens.
• control — Control of an organization, place, or system is the power to make all the important decisions about the way that it is run.
• protect — to defend or guard from attack, invasion, loss, annoyance, insult, etc.; cover or shield from injury or danger.
• finance — the management of revenues; the conduct or transaction of money matters generally, especially those affecting the public, as in the fields of banking and investment.
• uphold — to support or defend, as against opposition or criticism: He fought the duel to uphold his family's honor.
• provide — to make available; furnish: to provide employees with various benefits.
• support — to bear or hold up (a load, mass, structure, part, etc.); serve as a foundation for.
• manage — to bring about or succeed in accomplishing, sometimes despite difficulty or hardship: She managed to see the governor. How does she manage it on such a small income?
• keep — to hold or retain in one's possession; hold as one's own: If you like it, keep it. Keep the change.
• renew — to begin or take up again, as an acquaintance, a conversation, etc.; resume.
• continue — If someone or something continues to do something, they keep doing it and do not stop.
• sustain — to support, hold, or bear up from below; bear the weight of, as a structure.
• retain — to keep possession of.
• cultivate — If you cultivate land or crops, you prepare land and grow crops on it.
• stress — importance attached to a thing: to lay stress upon good manners. Synonyms: significance, meaning, emphasis, consequence; weight, value, worth.
• contend — If you have to contend with a problem or difficulty, you have to deal with it or overcome it.
• attest — To attest something or attest to something means to say, show, or prove that it is true.
• protest — an expression or declaration of objection, disapproval, or dissent, often in opposition to something a person is powerless to prevent or avoid: a protest against increased taxation.
• right — in accordance with what is good, proper, or just: right conduct.
• champion — A champion is someone who has won the first prize in a competition, contest, or fight.
• vindicate — to clear, as from an accusation, imputation, suspicion, or the like: to vindicate someone's honor.
• affirm — If you affirm that something is true or that something exists, you state firmly and publicly that it is true or exists.
• rectify — to make, put, or set right; remedy; correct: He sent them a check to rectify his account.
• back — If you move back, you move in the opposite direction to the one in which you are facing or in which you were moving before.
• report — an account or statement describing in detail an event, situation, or the like, usually as the result of observation, inquiry, etc.: a report on the peace conference; a medical report on the patient.
• state — the condition of a person or thing, as with respect to circumstances or attributes: a state of health.
• asseverate — to assert or declare emphatically or solemnly
• persist — to continue steadfastly or firmly in some state, purpose, course of action, or the like, especially in spite of opposition, remonstrance, etc.: to persist in working for world peace; to persist in unpopular political activities.
• aver — If you aver that something is the case, you say very firmly that it is true.
• profess — to lay claim to, often insincerely; pretend to: He professed extreme regret.
• allege — If you allege that something bad is true, you say it but do not prove it.
• correct — If something is correct, it is in accordance with the facts and has no mistakes.
• avow — If you avow something, you admit it or declare it.
• justify — to show (an act, claim, statement, etc.) to be just or right: The end does not always justify the means.
• persevere — to persist in anything undertaken; maintain a purpose in spite of difficulty, obstacles, or discouragement; continue steadfastly.
• advance — To advance means to move forward, often in order to attack someone.
• perpetuate — to make perpetual.
• supply — to furnish or provide (a person, establishment, place, etc.) with what is lacking or requisite: to supply someone clothing; to supply a community with electricity.
• prolong — to lengthen out in time; extend the duration of; cause to continue longer: to prolong one's stay abroad.
• guard — to keep safe from harm or danger; protect; watch over: to guard the ruler.
• nurture — to feed and protect: to nurture one's offspring.
• save — to rescue from danger or possible harm, injury, or loss: to save someone from drowning.
• repair — to restore to a good or sound condition after decay or damage; mend: to repair a motor.
• conserve — If you conserve a supply of something, you use it carefully so that it lasts for a long time.