a childcare worker or nursery teacher who cares for and educates infants and young children at nursery schools; often someone who holds the national childcare qualification.
弟は保育士の国家資格を取るために勉強している。
My younger brother is studying to obtain the national childcare worker qualification.
保育士は子どもの成長を細かく観察し、記録をつける。
Childcare workers closely observe children's development and keep records.
この保育園には経験豊かな保育士が多い。
This nursery has many experienced childcare workers.
保育士の人手不足は社会問題になっている。
The shortage of childcare workers has become a social issue.