Om

Om (ôm), [Skt.,=yes, so be it] for Hindus and Buddhists, a mystic word or mantra. Om is regarded as the syllable of the supreme Reality and is sometimes called "the mother of mantras." It is often found at the beginning of prayers, mantras, and scriptures as a word of invocation and adoration. In Hinduism its three Sanskrit phonemes (transliterated a, u, and m) symbolize the triad of Brahma the creator, Vishnu the preserver, and Shiva the destroyer, or the three levels of consciousness: waking, dreaming, and deep sleep. In Buddhism it is often understood as symbolizing the true "empty" character of reality, as that truth has been communicated by various historical Buddhas, celestial Buddhas, and, directly, by the true character of reality itself (see sunyata).

---

om

In Hinduism and other Indian religions, a sacred syllable considered the greatest of all mantras. The syllable om is composed of the three sounds a-u-m (in the Sanskrit language, the vowels a and u join to become o), which represent three important triads: earth, atmosphere, and heaven; the major Hindu gods, Brahma, Vishnu, and Shiva; and the sacred Vedic scriptures, Rig, Yajur, and Sama (see Vedic religion). Thus om mystically embodies the essence of the universe. It is uttered at the beginning and end of Hindu prayers, chants, and meditation and is also freely used in Buddhist and Jain rituals.

---

(networking)

om - The country code for Oman.

---

Om’ 

a river in Novosibirsk and Omsk oblasts, RSFSR, a right tributary of the Irtysh River (Ob’ River basin). The Om’ is 1,091 km long and drains an area of 52,600 sq km. Rising on the southeastern edge of the Vasiuganskaia Plain, the river flows, for the most part, across the Barabinskaia Lowland. It is meandering in its middle course. The Om’ is fed primarily by snow. High water occurs in May and July. The mean flow rate 121 km from the mouth is about 64 cu m per sec; maximum flow rate is 814 cu m per sec, and minimum flow rate is 0.80 cu m per sec. The river freezes in the second half of October or the first half of November and thaws in April or early May. The main right tributaries are the Icha, Kama, and Tartas. Timber is floated on the lower 100 km. During high water the river is navigable from the city of Kuibyshev. The city of Kalachinsk is also situated on the Om’, as is Omsk (at the mouth).