Meaning of AUXILIARY in English

[] adj [L auxiliaris, fr. auxilium help; akin to L augere to increase--more at eke] (15c) 1 a: offering or providing help b: functioning in a subsidiary capacity "an ~ branch of the state university"

2. of a verb: accompanying another verb and typically expressing person, number, mood, or tense 3 a: supplementary b: constituting a reserve "an ~ power plant"

4: equipped with sails and a supplementary inboard engine

[2]auxiliary n, pl -ries (1601) 1 a: an auxiliary person, group, or device; specif: a member of a foreign force serving a nation at war b: a Roman Catholic titular bishop assisting a diocesan bishop and not having the right of succession--called also auxiliary bishop

2: an auxiliary boat or ship

3: an auxiliary verb

Merriam-Webster English vocab.      Английский словарь Merriam Webster.