• xhristmas night,
• vhristmas night,
• fhristmas night,
• dhristmas night,
• cgristmas night,
• cbristmas night,
• cnristmas night,
• cjristmas night,
• curistmas night,
• cyristmas night,
• cheistmas night,
• chdistmas night,
• chfistmas night,
• chtistmas night,
• ch5istmas night,
• ch4istmas night,
• chrustmas night,
• chrjstmas night,
• chrkstmas night,
• chrostmas night

The adjective form of "christmas night" is "christmas night" itself as it does not change in its adjective form.

The plural form of "Christmas night" is "Christmas nights"

The singular form of the word "Christmas night" is "Christmas night".