Definitions from Wiktionary ( )

▸ noun:  (uncountable) A cheerful attitude; happiness; a good, happy, or positive mood.
▸ noun:  (now uncountable) That which promotes good spirits or cheerfulness, especially food and entertainment prepared for a festive occasion.
▸ noun:  (countable) A cry expressing joy, approval or support, such as "hurrah".
▸ noun:  (countable) A chant made in support of a team at a sports event.
▸ noun:  (obsolete) One's facial expression or countenance.
▸ noun:  (archaic) One's attitude, mood.
▸ verb:  (transitive) To gladden; to make cheerful; often with up.
▸ verb:  (transitive) To infuse life, courage, animation, or hope, into; to inspirit; to solace or comfort.
▸ verb:  (transitive, obsolete) To encourage to do something.
▸ verb:  (transitive, intransitive) To applaud or encourage with cheers or shouts.
▸ verb:  (transitive, figurative) To feel or express enthusiasm for (something).
▸ noun:  (chiefly Canada, US) Cheerleading, especially when practiced as a competitive sport.

---

▸ Word origin

▸ Words similar to cheer
▸ Usage examples for cheer

▸ Idioms related to cheer
▸ Wikipedia articles (New!)
▸ Popular adjectives describing cheer
▸ Words that often appear near cheer
▸ Rhymes of cheer

▸ Invented words related to cheer