English

Definition of hydro noun from the Oxford Advanced Learner's Dictionary

 

hydro

 noun
noun
BrE BrE//ˈhaɪdrəʊ//
 
; NAmE NAmE//ˈhaɪdroʊ//
 
[uncountable] (Canadian English)
 
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electricity to pay your hydro bill Word Origin late 19th cent.: abbreviation.