auxiliary ( auxiliaries plural )
1 n-count An auxiliary is a person who is employed to assist other people in their work. Auxiliaries are often medical workers or members of the armed forces.
Nursing auxiliaries provide basic care, but are not qualified nurses.
2 adj Auxiliary staff and troops assist other staff and troops.
The government's first concern was to augment the army and auxiliary forces.
3 adj Auxiliary equipment is extra equipment that is available for use when necessary.
...an auxiliary motor., ...auxiliary fuel tanks.
4 n-count In grammar, an auxiliary or auxiliary verb is a verb which is used with a main verb, for example to form different tenses or to make the verb passive. In English, the basic auxiliary verbs are `be', `have', and `do'. Modal verbs such as `can' and `will' are also sometimes called auxiliaries.
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