Definition of O & M in English:

O & M

Syllabification: O & M

Entry from US English dictionary

abbreviation

1Operations and maintenance.
1.1Organization and methods.

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Nearby words

Word of the day hypnopompic
Pronunciation: ˌhɪpnə(ʊ)ˈpɒmpɪk
adjective
relating to the state immediately preceding waking up