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ancillary

1 ENTRIES FOUND:
ancillary /ˈænsəˌleri/ Brit /ænˈsɪləri/ adjective
ancillary
/ˈænsəˌleri/ Brit /ænˈsɪləri/
adjective
Britannica Dictionary definition of ANCILLARY
formal
: providing something additional to a main part or function : extra
sometimes + to