A novice is a person or creature who's new to a field or activity.
In a large number of Buddhist orders, a man or woman who intends to take ordination must first become a novice, adopting part of the monastic code indicated in the vinaya and studying in preparation for full ordination. The name for this level of ordination varies from one tradition to another. In Pali, the word is samanera, which means 'small monk' or 'boy monk'.
A novice in Roman Catholic canon law and tradition, is a prospective member of a religious order who's being tried and being proven for suitability of admission to a religious order of priests, religious brothers, or religious sisters, whether the community is one of monks or has an "active" ministry. After initial contact with the community, and usually a period of time as a postulant (a more or less formal period of candidacy for the novitiate), the person will be received as a novice in a ceremony that most often involves being clothed with the religious habit (traditional garb) of the particular religious community. The novice's habit is often slightly different from those of professed members of the order. For instance, in communities of women that wear a dark veil over the head, novices often wear a white one; among Franciscan communities of men, novices wear an additional shirt-like chest piece over the traditional Franciscan robe; Carthusian novices wear a dark cloak over the usual white habit; etc.
Novices aren't admitted to vows until they have successfully completed the prescribed period of training and proving, called the novitiate. This usually lasts one year, the minimum required by Canon Law, though in a few orders and communities it is two. Novices typically have dormitories in separate areas within a monastery or community and are under the direct supervision of a novice master or novice mistress.
Eastern Orthodox Church
In the Orthodox Church, a candidate might be clothed as a novice (Slavonic: послушник, poslushnik, lit. "one under obedience") by the Hegumen (Abbot) or Hegumenia (Abbess) after at least three days in the monastery. There is no formal ceremony for the clothing of a novice; he (or she) would simply be given the Riassa, belt and Skoufos. Novice nuns additionally wear a veil (apostolnik) that covers the head and neck. A novice is additionally given a prayer rope and instructed in the use of the Jesus Prayer. In large communities, the new novice might be assigned a Starets (spiritual father or spiritual mother) who'll guide his spiritual development. Frequent confession of sins and participation in the Sacred Mysteries (Sacraments) of the Church is an important part of Orthodox monastic life.
A novice is free to leave the monastery at any time, and the superior is additionally free to dismiss the novice at any time if, for instance, he or she feels the novice isn't called to monasticism or if there have been discipline issues. If, however, the novice perseveres, after a period of around three years the Hegumen might choose to clothe the him in the first (beginning) rank of monasticism: the Rassaphore.
Novice is a level of minor hockey in Canada. Novice players are usually between the ages of 7 and 8.
In the sport of crew (rowing), the term is used for an athlete in their first year of competition.