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子供は公園で遊んでいます
The child is playing in the park
A young human being, typically below the age of adulthood
子供は学校に行きます
The child goes to school
In Japanese, '子供' can refer to children in general or one's own children. It is a neutral term that doesn't specify gender.
'子供' is a gender-neutral term. If you want to specify gender, use '少年' (boy) or '少女' (girl).
The plural form of '子供' is '子供たち' (kodomotachi).
The kanji '子' means 'child' and '供' means 'to accompany' or 'to serve'. Together, they originally referred to a child who accompanies or serves someone, but the modern meaning is simply 'child'.
While '子供' is the most common word for 'child', '子' alone can also mean 'child' in certain contexts, such as '子供の頃' (when I was a child).