The phrase "advent window" is correct and usable in written English.
It can be used to refer to a decorative window display or a calendar used during the Advent season leading up to Christmas.
Example: "Every December, we set up an advent window in our living room to count down the days until Christmas."
Alternatives: "Advent calendar" or "Christmas window display".
This woolly cash cow has become a time-marker, a signifier, a momentous purled advent calendar window, suddenly every bit as valid and culturally relevant as buying a tree or breaking up from school.
"This is the major reason why we do not believe that the ultrabook segment is really going to take off until next year". Windsor suggested that the advent of Windows 8, which allows the use of ARM's architecture instead of Intel's, would make devices cheaper, as would the availability of low-cost flash memory.
Such things have been promised, but unseen, since the advent of Windows 98.
Grampy advents through the window a lot, as he's always being thrown out of Shit Nan's house.
Who knows how this has been influenced by her dad, Grampy – a wiley old stoner in £12 market jeans, who often advents through the window ("I don't like keys. I operate on trust") to dispense his wisdom to his grandchildren (Germaine: "What makes a boy like a girl, Grampy?" Grampy: "Well, I'm an arse-man myself, Germaine").
Before the advent of Microsoft's Windows NT and successive Windows generations, MS-DOS, was the operating system under the covers of the then current personal computers.
When astronomers announced in February that they had detected the ripples in space-time known as gravitational waves from a pair of black holes colliding, the discovery was hailed as the advent of a new window on nature.
The festive lights are glowing on high streets across the country and the first windows on advent calendars have been excitedly cracked open; it's Christmas time for certain.
The advent of the January transfer window should mean that a protracted transfer saga (henceforth referred to as a PTS) can now only really take place in the summer months.
Yet in that oh-so-brief window between the advent of the pill and the fear of AIDS, when abortion was both legal and accessible to teenagers, there was — at least for some of us — a kind of Our Bodies, Ourselves optimism about sex.
