auxiliary
auxiliary — adjective
1. providing extra assistance to a person, group, or system that does the main work
providing extra assistance to a person, group, or system that does the main work, usually in a smaller or supporting role.
The hospital trained auxiliary nurses to help the regular medical team during the flu outbreak.
attributive: auxiliary + nurses (supporting role)
Maria works as an auxiliary teacher who supports children with reading difficulties.
auxiliary + teacher: subordinate to main staff
Auxiliary firefighters arrived from the next town to assist the main crew at the warehouse blaze.
The library hired auxiliary staff during the busy summer reading program.
Captain Chen praised the auxiliary unit for unloading supplies on the harbor.
- supporting
more general; works in any context where 'auxiliary' sounds too formal
- supplementary
stresses 'added on top of'; less about people, more about things or services
- ancillary
very formal synonym, common in business or legal writing
文法句型
auxiliary + noun
用法筆記
Almost always used attributively (before a noun) — say 'auxiliary staff', not 'the staff is auxiliary'. The noun it modifies usually names a job, role, or group of people.
常見錯誤
2. kept ready to operate when the main machine, power source, or system stops worki
kept ready to operate when the main machine, power source, or system stops working or cannot cope on its own.
When the storm cut the power, the hospital switched to its auxiliary generator within seconds.
auxiliary + generator: backup equipment
The yacht has an auxiliary engine for days when the wind drops completely.
auxiliary + engine: reserve equipment
Engineers fitted an auxiliary fuel tank under the wings of the small plane.
The data center keeps an auxiliary cooling system in case the main one fails.
Sailors switched to the auxiliary pump after seawater began entering the cargo hold.
文法句型
auxiliary + noun
用法筆記
Distinguish from sense 1: this sense applies to equipment, power supplies, and machines that sit idle and only run during a problem. Sense 1 applies to people who help in a supporting role on a daily basis.
常見錯誤
auxiliary — noun
1. a worker employed to help the main staff with simpler or supporting tasks, often
a worker employed to help the main staff with simpler or supporting tasks, often in a hospital, school, or military setting.
Nursing auxiliaries took care of the patients' meals and washing while the nurses gave medicine.
noun: nursing + auxiliaries (plural)
After her training course, Fadi found a job as a teaching auxiliary in a primary school.
as a + auxiliary: occupational role
The clinic relies on three auxiliaries to keep the waiting room clean and the records updated.
Mr. Patel started his career as a hospital auxiliary before training as a doctor.
用法筆記
Often used with a noun in front to show the field of work — 'nursing auxiliary', 'dental auxiliary', 'teaching auxiliary'. On its own, the meaning is usually clear only from context.
常見錯誤
2. in grammar, a small group of verbs (for example 'be', 'have', 'do', 'will', and
in grammar, a small group of verbs (for example 'be', 'have', 'do', 'will', and 'can') that combine with another verb to mark tense, build questions, or form negatives.
In the sentence 'She has finished her homework', 'has' is the auxiliary that shows present perfect tense.
auxiliary + main verb: tense marker
English uses the auxiliary 'do' to make questions like 'Do you like coffee?'
auxiliary 'do' for questions
Students often forget that the auxiliary, not the main verb, carries the negative in 'I don't know'.
Ms. Lin wrote 'You should drink more water' on the board to show how the modal auxiliary 'should' gives advice.
- helping verb
the everyday classroom term, used with younger learners
- auxiliary verb
fuller, more formal version of the same idea
- main verb
the verb that carries the central meaning of the sentence
- lexical verb
technical term in linguistics for a non-auxiliary verb
文法句型
auxiliary + main verb
用法筆記
Often called a 'helping verb' or 'auxiliary verb' in school grammar books. The full term 'auxiliary verb' is more common than 'auxiliary' alone in this sense.
常見錯誤
3. a member of a military force from one nation who joins the armed forces of anoth
a member of a military force from one nation who joins the armed forces of another nation to fight on its behalf, usually as part of an additional unit.
The Roman army hired thousands of auxiliaries from the tribes living near the empire's borders.
noun: hired + auxiliaries (plural usage)
Foreign auxiliaries fought beside the regular troops at the battle of the river.
foreign + auxiliaries: typical collocation
Historians believe the auxiliaries received Roman citizenship after twenty-five years of service.
The general placed his cavalry auxiliaries on the right side of the battlefield.
- mercenary
stresses fighting for pay rather than loyalty; often disapproving
- allied troops
neutral modern term for soldiers from a partner nation
- regulars
the country's own full-time soldiers
用法筆記
Almost always plural ('auxiliaries'). Strongly associated with the Roman army and other historical contexts; modern armies usually say 'allied troops' or 'reservists' instead.