say it: MER-ee
merry is an adjective meaning "full of or showing high-spirited merriment". It carries 3 recorded senses.
full of or showing high-spirited merriment
“when hearts were young and gay”
“a poet could not but be gay, in such a jocund company”
“the jolly crowd at the reunion”
“jolly old Saint Nick”
“a jovial old gentleman”
“have a merry Christmas”
“peals of merry laughter”
“a mirthful laugh”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for merry come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.