noun
Refers to a person who provides physical assistance or care, often in nursing, disability support, or daily living contexts. More specific than a general helper.
高齢者の介助者として働いています。
I work as a caregiver for the elderly.
介助者が車椅子を押して病院の中を移動した。
The aide pushed the wheelchair and moved through the hospital.
ヘルパー is a common loanword for a home helper or personal care assistant, often used in casual or job-title contexts, whereas 介助者 is a more formal, written term.
Compound of 介助 (assistance, help) and 者 (person). The word follows a standard Sino-Japanese pattern for forming agent nouns.