At this time of year we hear and see "Merry Christmas" a lot.
Merry means, happy, and I've been thinking of other words that mean the same thing.
One of my high school teachers used to often say, "Happy, cheerful, merry, gay.". (Of course now gay has taken on a different meaning.)
Other words with meanings similar to merry are joyful, cheerful, pleased, delighted, ecstatic, joyful, lighthearted, and glad.
I'm sure there are many other similar words, but I won't bother to look them up and list them all here.
Having so many ways to talk about happiness shows that we have a culture of positive people in spite of all the gloom and doom in the news.
I hope your holiday season is full of happiness, joy, etc., etc., etc.