Maintain: meaning, definitions and examples

When discussing keeping something in its existing state or condition, especially when involving regular checks and repairs.

• The company hired a team to maintain the machinery
• It's important to maintain good health through a balanced diet and exercise

When referring to keeping something safe from harm, damage, or decay, often used in a context of protecting historical or environmental features.

• The museum works to preserve ancient artifacts
• Efforts are being made to preserve the endangered species

When focusing on keeping something going or supporting it over time, usually in relation to resources, energy, or strength.

• The organization aims to sustain community programs through donations
• It's challenging to sustain motivation during tough times

When emphasizing supporting or defending something such as a law, principle, or decision, often used in legal or formal speeches.

• The judge vowed to uphold the law
• It's important to uphold traditions and values

Use 'maintain' to indicate keeping something in a current state or condition over time, or to support a position or opinion consistently.

• He maintains his car regularly to keep it in good condition.
• She maintains that she saw him at the park.

Use 'assert' to confidently state a fact or belief, often in the face of opposition.

• He asserted his innocence during the trial.
• She asserted her authority over the new project.

Use 'declare' to make an official or formal announcement.

• The president declared a state of emergency.
• They declared their engagement at the party.

Use 'affirm' to express agreement or support, especially in a formal or confident manner.

• The court affirmed the decision of the lower court.
• She affirmed her belief in equal rights.