This is the 7372nd most frequent Russian word.
глазков
"Глазков" is a plural form of "глазок," which can mean "peepholes," "spots resembling eyes," or "small lenses," depending on context. It can also be a surname.
Here, 'глазок' refers to a peephole in a door, used to check before opening to see who is outside.
Я смотрел через глазок, прежде чем открыть дверь.
I looked through the peephole before opening the door.
In this context, 'глазки' are decorative elements resembling small eyes or eyelets.
На куртке были вышиты маленькие глазки.
Tiny eyelets were embroidered on the jacket.
The word 'глазок' here represents a small hole, often unintentional, in material such as fabric.