Synonyms of the word

prolong

• v. (transitive) To extend in space or length.
• v. (transitive) To lengthen in time; to extend the duration of; to draw out; to continue.
• v. (transitive) To lengthen temporally; to put off to a distant time; to postpone.

continue

• v. (transitive) To proceed with (doing an activity); to prolong (an activity).
• v. (transitive) To make last; to prolong.
• v. (transitive) To retain (someone or something) in a given state, position etc.
• v. (intransitive) To remain in a given place or condition; to remain in connection with; to abide; to stay.
• v. (intransitive) To resume.
• v. (transitive, law) To adjourn, prorogue, put off.
• v. (poker slang) To make a continuation bet.
• n. (video games) an option allowing a gamer to resume play after game over, when all lives have been lost.
• n. (programming) a statement which causes a loop to start executing the next iteration, skipping the statements…

extend

• v. (intransitive) To increase in extent.
• v. (intransitive) To possess a certain extent.
• v. (transitive) To cause to increase in extent.
• v. (transitive) To cause to last for a longer period of time.
• v. (transitive) To straighten (a limb).
• v. To bestow; to offer; to impart; to apply.
• v. To increase in quantity by weakening or adulterating additions.
• v. (Britain, law) To value, as lands taken by a writ of extent in satisfaction of a debt; to assign by writ…
• v. (object-oriented programming) Of a class: to be an extension or subtype of, or to be based on, a prototype…

lengthen

• v. (transitive) To make longer, to extend the length of.
• v. (intransitive) To become longer.

preserve

• n. A sweet spread made of any of a variety of berries.
• n. A reservation, a nature preserve.
• n. An activity with restricted access.
• v. To protect; to keep from harm or injury.
• v. To save from decay by the use of some preservative substance, such as sugar or salt; to season and prepare…
• v. To maintain throughout; to keep intact.

protract

• v. To draw out; to extend, especially in duration.
• v. To use a protractor.
• v. (surveying) To draw to a scale; to lay down the lines and angles of, with scale and protractor; to plot.
• v. To put off to a distant time; to delay; to defer.
• v. To extend; to protrude.

sustain

• n. (music) A mechanism which can be used to hold a note, as the right pedal on a piano.
• v. (transitive) To maintain, or keep in existence.
• v. (transitive) To provide for or nourish.
• v. (transitive) To encourage (something).
• v. (transitive) To experience or suffer (an injury, etc.).
• v. (transitive) To confirm, prove, or corroborate.
• v. To keep from falling; to bear; to uphold; to support.
• v. To aid, comfort, or relieve; to vindicate.

uphold

• v. To hold up; to lift on high; to elevate.
• v. To keep erect; to support; to sustain; to keep from falling; to maintain.
• v. To support by approval or encouragement.