This is the 131st most frequent Greek word.
παιδί
Child.
In this sentence, 'παιδί' is used to refer to a person who is a child, indicating a young age.
Το παιδί παίζει στον κήπο.
The child is playing in the garden.
'Παιδί' here is used metaphorically to describe someone's character, highlighting innocence or good nature.
Είναι πολύ καλό παιδί.
(He/She/They) is a very good kid.
In this usage, 'παιδιά' (plural of 'παιδί') generally refers to the younger members of the family.