This is the 16361st most frequent Polish word.
uśmiech
Smile.
Here, 'uśmiech' is used as a noun to describe the facial expression of joy or happiness.
Na jej twarzy pojawił się uśmiech.
A smile appeared on her face.
In this sentence, 'uśmiech' acts as the subject of the sentence, denoting the physical act that influenced the speaker's emotions.
Jej uśmiech sprawił, że poczułem się lepiej.
Her smile made me feel better.
This usage emphasizes 'uśmiech' as a characteristic, describing the genuineness of someone's smile.