happy Definition in the Cambridge English Dictionary
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Definition of “happy” - English Dictionary

Definition of "happy" - American English Dictionary

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happyadjective

 us   /ˈhæp·i/

happy adjective (PLEASED)

feeling, ​showing, or causing ​pleasure or ​satisfaction: To ​tell the ​truth, I’ve never been happier in my ​wholelife. People ​wantmovies to have happy endings. [+ (that) clause] I’m happy (that) everything is ​working out for you. I’ve been very happy with (= ​satisfied with) the ​education that my ​boys have ​gotten through ​scouting. Happy is used as a ​polite way to ​expressyourwillingness to do something: [+ to infinitive] I’m ​driving that way and I’d be happy to ​drop you off at ​yourhome. [+ to infinitive] It was no ​trouble at all – I was happy to be of ​help. Happy is also used in ​greetings for ​specialoccasions, ​expressing good ​wishes: Happy ​birthday! Happy New ​Year

happy adjective (LUCKY)

lucky: By a happy ​coincidence, we ​found ourselves on the same ​flight. Note: said about a condition or situation
(Definition of happy from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "happy" - British English Dictionary

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happyadjective

uk   us   /ˈhæp.i/

happy adjective (PLEASED)

A1 feeling, ​showing, or ​causingpleasure or ​satisfaction: a happy ​marriage/​childhood She ​looks so happy. School ​days are said to be the happiest ​days of ​yourlife. Nicky ​seems a lot happier since she ​met Steve. You'll be happy toknow that Jean is coming with us. I'm ​perfectly happy to (= I will ​willingly)help out. I'm so happy (that) everything is ​working out for you. Barry ​seems happy enough ​working for himself. Are you happy about/with (= ​satisfied with)your new ​workingarrangements? Your mother's not going to be very happy when she ​sees the ​mess you've made!formal The ​manager will be happy (= is ​willing) tosee you this ​afternoon.
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happy adjective (GREETING)

A1 [before noun] (used in ​greetings for ​specialoccasions) ​full of ​enjoyment and ​pleasure: Happy Birthday! Happy Anniversary! Happy New Year!
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happy adjective (LUCKY)

[before noun] (of a ​condition or ​situation) ​lucky: We hadn't ​planned to be in France at the same ​time as Ann and Charles - it was just a happy coincidence.

happy adjective (SUITABLE)

literary (of words or ​behaviour) ​suitable: It wasn't a happy ​choice of phrase given the ​circumstances.
(Definition of happy from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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