happy -birthday -year

Traditional ending to stories

and they all lived happily ever after

having a happy ending; ending without incident

happy memory; sweet memory

Nouns which may take the genitive case particle 'no'

peace; tranquility; tranquillity

Archaic

happy-go-lucky

'taru' adjective

harmonious; peaceful; congenial; friendly; happy

sitting together in a circle; happy circle; harmony

to delight; to please; to make (someone) happy; to give pleasure (to)

lucky omen; happy; auspicious

to look happy; to look pleased

to make eyes (at someone); to ogle

happy tears; tears of joy

seeming happy

Colloquial

(very) happy; euphoric; buoyant; walking on air

money monger; money-happy person; person who is money-mad; money-grubber

matter for congratulation (wedding, pregnancy, birth, etc.); happy event

Slang

super happy; wonderful; delightful; awesome

happi coat; happy coat; workman's livery coat; traditional Japanese straight-sleeved coat

quirk of fate; curious coincidence; happy chance

happy event; auspicious event; matter for congratulation

harmonious (couple, family, etc.); happy; affectionate; friendly; intimate

From the name of a gagaku piece

happy-go-lucky

great success; happy result; good result

happy; cheerful; pleasant

'taru' adjective

fully satisfied (with an explanation, apology, etc.); happy; cleared of doubt

happy family get-together

matrimonial happiness; happy marriage