Yes, because it's a general term.
Its not happy holidays its merry christmas .dont care what others think ,screw the PC brigade .
I am not sure what you are referring to as "it", but the Winter Solstice represents the calendar date corresponding to the position in its orbit around the sun that the northern hemisphere is tilted the farthest away from the sun in the plane of the ecliptic.
Well, that name seemed to work for countless centuries prior to now... so, yes. LET'S BE TRADITIONAL ABOUT IT.