auxiliary

Từ điển tiếng Anh - Cambridge Advanced Learners Dictionary

auxiliary UK [ɔːgˈzɪl.i. ə r.i] US [ɑːgˈzɪl.i.er-] adjective
giving help or support, especially to a more important person or thing
• auxiliary staff/nurses
Thesaurus⁺: ↑Helping and co-operating
 
noun
 
PERSON
1. countable a person whose job is to give help or support to other workers
• semi-skilled auxiliaries
Thesaurus⁺: ↑Helpers and accomplices ↑People who help or serve people professionally
2. countable usually plural a soldier of one country who fights for another country
Thesaurus⁺: ↑Soldiers and people who fight in wars
 
VERB
3. countable ( also auxiliary verb ) a verb that gives grammatical information, for example about tense, which is not given by the main verb of a sentence
• The first verb in each of the following sentences is an auxiliary - I would love a drink, When did you arrive?, She has finished her book.
Thesaurus⁺: ↑Verb forms, tenses and types of verbs

• Từ đồng nghĩa / Synonyms:
  accessory, adjunct, ancillary, adjuvant, appurtenant, subsidiary, supplemental, supplementary, aide