jikkai

Japanese term meaning:

1. The ten precepts taken by novices in Buddhist monasteries and convents.

2. As different Japanese characters but with the same transliteration, the ‘ten realms’ of Mahāyāna thought: hell, hungry ghost (preta), animal, human, asura, heaven, Śrāvaka, Pratyekabuddha, Bodhisattva, and Buddha.

A Dictionary of Buddhism, Oxford University Press, 2003, 2004 (which is available in electronic version from answer.com)