cheer

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A shout of approval, encouragement, or congratulation.
• noun A short, rehearsed jingle or phrase, shouted in unison by a squad of cheerleaders.
• noun Comfort or encouragement.
• noun Lightness of spirits or mood; gaiety or joy.
• noun Festive food and drink; refreshment.
• intransitive verb To shout cheers. synonym: applaud.
• intransitive verb To express praise or approval.
• intransitive verb To become cheerful.
• intransitive verb To encourage with cheers: synonym: encourage.
• intransitive verb To salute or acclaim with cheers; applaud.
• intransitive verb To express praise or approval for; acclaim.
• intransitive verb To make happier or more cheerful.

from The Century Dictionary.

• noun English dialectal and former literary form of chair.
• To dispel despondency, sorrow, or apathy from; cause to rejoice; gladden; make cheerful; often with up.
• To cure; recover.
• To incite; encourage.
• To salute with shouts of joy or cheers; applaud: as, to cheer a public speaker.
• To be in any state or temper of mind; fare.
• To grow cheerful; cast off gloom or despondency; become glad or joyous: often with up.
• To utter a cheer or shout of acclamation or joy.
• To fare; prosper.
• noun The face; countenance.
• noun Look; demeanor.
• noun Expression of countenance, as noting the state of feeling.
• noun State or temper of the mind as indicated by expression or demeanor; state of feeling or spirits.
• noun A state of gladness or joy; gaiety; animation.
• noun That which makes cheerful or promotes good spirits; entertainment; provisions for a feast; viands; fare.
• noun A shout of joy, encouragement, applause, or acclamation.
• noun Fortune; luck; also, report; tidings.
• noun A name of Wallich's pheasant, Phasianus wallichi.
• Dear; loved.
• Worthy; fit.
• noun A dear one; a friend.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete The face; the countenance or its expression.
• noun Feeling; spirit; state of mind or heart.
• noun Gayety; mirth; cheerfulness; animation.
• noun That which promotes good spirits or cheerfulness; provisions prepared for a feast; entertainment.
• noun A shout, hurrah, or acclamation, expressing joy enthusiasm, applause, favor, etc.
• noun How do you fare? What is there that is cheering?
• transitive verb To cause to rejoice; to gladden; to make cheerful; -- often with up.
• transitive verb To infuse life, courage, animation, or hope, into; to inspirit; to solace or comfort.
• transitive verb To salute or applaud with cheers; to urge on by cheers.
• transitive verb to salute a passing ship by cheers of sailors stationed in the rigging.
• intransitive verb To grow cheerful; to become gladsome or joyous; -- usually with up.
• intransitive verb obsolete To be in any state or temper of mind.
• intransitive verb To utter a shout or shouts of applause, triumph, etc.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A chant made in support of a team at a sports event.