Her jacket was made of leather.

In the given sentence, the words "jacket" and "leather" can be seen and touched.

Hence, "jacket" and "leather" are the concrete nouns in the given sentence.

He was living in slavery and poverty.

In the given sentence, the words "slavery" and "poverty" describes a state of mind that cannot be seen and touched.

Hence, "slavery" and "poverty" are the abstract nouns in the given sentence.

I was overjoyed when I saw my first paycheck.

In the given sentence, "overjoyed" describes a state of mind that cannot be seen and touched, and "paycheck" can be seen and felt.

Hence, "overjoyed" is an abstract noun, and "paycheck" is a concrete noun in the given sentence.