auxiliary

adjective
1
giving help or support to the main group of workers
کمکی, یاری‌دهنده, معاون, پشتیبان
synonym ancillary
2
used if there is a problem with the main piece of equipment
کمکی, پشتیبان, اضافی
an auxiliary pump
noun
1
a verb such as be, do and have used with main verbs to show tense, etc. and to form questions and negatives
فعل کمکی, کمکی
2
a worker who gives help or support to the main group of workers
یار, کمکی, معاون, دستیار, همیار
nursing auxiliaries