This is the 317th most frequent Greek word.
μικρό
Small.
The term 'μικρή' (feminine form) is used here metaphorically as an adjective to modify 'πιθανότητα' (chance), implying a low probability or likelihood.
Έχει μια μικρή πιθανότητα να κερδίσει το βραβείο.
There is a small chance of winning the prize.
In this sentence, 'μικρό' functions as an adjective to characterize the size or perhaps the scale of appreciation represented by the gift.
Της αγόρασε ένα μικρό δώρο για τη γιορτή της.
He bought her a small gift for her celebration.
The term 'μικρό' is used as an adjective to describe the physical size of the house, indicating that it is small in dimensions or area.