IPA: /ˈpæti.oʊ/
KK: /ˈpætiˌoʊ/
An outdoor area next to a house, usually paved, where people can relax, eat, or enjoy the fresh air.
We had dinner on the patio while enjoying the warm evening breeze.
Patio comes from Spanish 'patio', meaning courtyard or inner courtyard, which itself derives from Latin 'patium', meaning open space or courtyard. The word 'patio' refers to an outdoor space that is often paved and used for dining or recreation.
Imagine an 'open space' ('patium') where people gather outside — that's what a patio is.