Those English speaking Britains call it Christmas.
Most people eat turkey or ham at Christmas (; Tastes really good, too. The same as Americans
English is the main language in Ireland, so people in Ireland just say "Christmas". In the Irish language the word for Christmas is "Nollaig", pronounced "Nullig".
The majority of people in Trinidad & Tobago speak either English or English Creole. Either way, they would say "Merry Christmas" the same way we say it in English speaking countries.
Usually a star or an angel.
Christmas.
The same date as everybody else the 25th December
"Christmas" in English means Natale in Italian.
"Merry Christmas!" in Italian is "Buon Natale!"
Most people in Ireland speak English so they would say Merry Christmas or commonly Happy Christmas. If they are using the Irish language, they will say "Nollaig shona duit" which is pronounced "Nullig huna dit".
Christmas Birthdays Easter Halloween Thanksgiving and other special eccasions
It is called eggnog.