The phrase 'under your window' is correct and can be used in written English.
For example, you could say: "I can hear the birds singing under your window."
It's like having a lawn mower under your window".
She loved referenda: "Do you want the hunter to go hunting under your window?
The beggars didn't beg empty-handed, as in Istanbul; instead, they'd stand under your window playing the accordion.
It means controls placed at precise, strategic points, because when 20,000 people gather under your window on a regular basis you're a man who relies on convenience.
Test the ladder: put it under your window.
Have your friends go get the ladder from its hiding place and put it under your window.
And then suddenly, under your windows there formed a camp with 4,000 residents from the Middle East.
You can also create a win-win situation by placing your bed under your window--the two will combine into one pretty focus point.
Place plants or shrubbery under your windows or on your property that is difficult to navigate around, such as rose bushes with lots of thorns.
These obnoxious, irritating and often spammy advertisements are those that load "under" your current window – meaning you don't see them until you minimize your browser.
If you're super lucky like me, they'll set up a control van under your bathroom window and even potty time becomes something you're suspicious about.
