vo ‧ ca ‧ tion /vəʊˈkeɪʃ ə n $ voʊ-/ BrE AmE noun [uncountable and countable]
[ Date: 1400-1500 ; Language: Latin ; Origin: vocatio 'call, summons' , from vocare 'to call' ]
1 .
a) the feeling that the purpose of your life is to do a particular type of work, especially because it allows you to help other people
vocation for
Jan has a vocation for teaching.
a strong sense of vocation
You missed your vocation (=you would have been good at a particular job) .
b) a particular type of work that you feel is right for you:
At 17 she found her true vocation as a writer.
2 . a strong belief that you have been chosen by God to be a priest or a ↑ nun