Aam n.  A Dutch and German measure of liquids, varying in different cities, being at Amsterdam about 41 wine gallons, at Antwerp 36½, at Hamburg 38¼. [Written also Aum and Awm.]
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  Om interj. & n. [Also Aum, Um.] 
  Om mani padme hun, a sacred formula of buddhism (esp. of the Lamaists) translated “O, the Jewel in the Lotus, Amen,” and referring to Amitabha, who is commonly represented as standing or sitting within a lotus.
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  Aum
       n : a terrorist organization whose goal is to take over Japan
           and then the world; based on a religion founded in 1987
           that combines elements of Buddhism with Christianity; "in
           1995 Aum members released deadly sarin gas on a Tokyo
           subway train" [syn: Aum Shinrikyo, Supreme Truth]