adjective
Having a feeling arising from a consciousness of well-being or of enjoyment; enjoying good of any kind, such as comfort, peace, or tranquillity; blissful, contented, joyous.
(of people) Experiencing the effect of favourable fortune; favored by fortune or luck; fortunate, lucky.
Content, willing, satisfied (with or to do something); having no objection (to something).
(of acts, events, speech, etc.) Bringing or being an instance of favourable fortune; apt, felicitous, fortunate, propitious.
(in combination) Favoring or inclined to use.
(rare, of people, often followed by "at" or "in") Dexterous, ready, skilful.
Implying “May you have a happy ⁓” or similar; used in phrases to wish someone happiness or good fortune at the time of a festival, celebration, or other event or activity.
noun
(informal, rare) A happy event, thing, person, etc.
verb
(intransitive, informal) Often followed by up: to become happy; to brighten up, to cheer up.
(transitive, informal) Often followed by up: to make happy; to brighten, to cheer, to enliven.