WordNet (r) 3.0 (2006):

mom
    n 1: informal terms for a mother [syn: ma, mama, mamma,
         mom, momma, mommy, mammy, mum, mummy]

Moby Thesaurus II by Grady Ward, 1.0:

18 Moby Thesaurus words for "mom":
   dam, foster mother, genetrix, ma, mam, mama, mammy, mater,
   materfamilias, maternal ancestor, matriarch, mommy, mother, mummy,
   old lady, old woman, stepmother, the old woman



V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MOM
       Message Orientated Middleware (IBM)


V.E.R.A. -- Virtual Entity of Relevant Acronyms (February 2016):

MOM
       Microsoft Operations Manager (MS, SMS)