Profession, career.  This Latin term translates to "calling", and originally was used in a religious context to indicate a career that an individual was called to based on the talents given to them by God.  Now the term is used in secular contexts, but still carries the conotation of a career that someone is drawn to based on their specific skills and talents.
Related information about vocation:
- Vocation - Wikipedia, the free encyclopedia
A vocation (Latin vocātiō - a call, summons) is an occupation to which a person is   specially drawn or for which he or she is suited, trained, or qualified. Though ...
  
- Vocation - Merriam-Webster Online
a : a summons or strong inclination to a particular state or course of action;   especially : a divine call to the religious life. b : an entry into the priesthood or a ...
  
- Vocation | Define Vocation at Dictionary.com
a strong impulse or inclination to follow a particular activity or career. 3. a divine   call to God's service or to the Christian life. 4. a function or station in life to which ...
  
- Welcome to vocation.com
Catholic vocation resources for promoting and discerning vocations.
  
- Vocation Synonyms, Vocation Antonyms | Thesaurus.com
Synonyms for vocation at Thesaurus.com with free online thesaurus, antonyms,   and definitions. Dictionary and Word of the Day.
  
- vocation - definition of vocation by the Free Online Dictionary ...
A regular occupation, especially one for which a person is particularly suited or   qualified. 2. An inclination, as if in response to a summons, to undertake a certain ...
  
- CATHOLIC ENCYCLOPEDIA: Ecclesiastical and Religious Vocation
The special gift of those who, in the Church of God, follow with a pure intention   the ecclesiastical profession of the evangelical counsels.
  
- Vocations - United States Conference of Catholic Bishops
"The discernment of a vocation is above all the fruit of an intimate dialogue   between the Lord and his disciples. Young people, if they know how to pray, can   be ...