A familiar/polite term for a person who helps with household chores; equivalent to 'maid' or 'housekeeper'.
昔、うちにはお手伝いさんがいました。
We used to have a maid in our house.
お手伝いさんに掃除と料理を頼んだ。
I asked the housekeeper to do the cleaning and cooking.
子どもたちはお手伝いさんに懐いている。
The children are fond of the maid.