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English definition of “ancillary”

ancillary

adjective uk   /ænˈsɪl.ər.i/ us    /ˈæn.sə.ler.i/
providing support or help: ancillary staff/workers an ancillary role Campaigning to change government policy is ancillary to the charity's direct relief work.
(Definition of ancillary from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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