Definition of contactor in English:

contactor

Syllabification: con·tac·tor
Pronunciation: /ˈkänˌtaktər, kənˈtak-/

Entry from US English dictionary

noun

A device for making and breaking an electric circuit.

Definition of contactor in:

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Word of the day notional
Pronunciation: ˈnəʊʃ(ə)n(ə)l
adjective
existing only in theory or as a suggestion…