[ˈhapi], (Adjective)

Definitions:
- feeling or showing pleasure or contentment
(e.g: Melissa came in looking happy and excited)

- having a sense of trust and confidence in (a person, arrangement, or situation)
(e.g: he was not happy about the proposals)

- fortunate and convenient
(e.g: he had the happy knack of making people like him)

- inclined to use a specified thing excessively or at random
(e.g: they tended to be grenade-happy)


Phrases:
- as happy as Larry
- as happy as a clam
- as happy as a pig in shit
- as happy as a sandboy

Origin:
Middle English (in the sense ‘lucky’): from the noun hap + -y