'Dharma (Tib. Chö): Buddha's teachings.
Translates literally to 'the way things are.'
It encompasses the three levels of teachings - the Basic Way, Great Way, and Diamond Way - and is part of the Buddhist refuge.'
-- Quoted from 'Buddha & Love' book by Lama Ole Nydahl.
Blog author's comments.
It's said that Dharma is a word for 'Buddha's Unsurpassable Teachings'.
There are other Dharmic Religions as well - it's found in Buddhism, Hinduism, Sikhism and Jainism.
When in relation with Buddhism, it's often spoken as: 'Buddha-Dharma'.