The twelve vows are described as follows:
Five Main Vows of Limited Nature (Anuvratas):
1. Non-violence Anuvrat - Ahimsa Anuvrat (Sthula Pranatipat Viraman)
2. Truthfulness Anuvrat - Satya Anuvrat (Sthula Mrisavada Viraman)
3. Non-stealing Anuvrat - Achaurya Anuvrat (Sthula Adattadana Viraman)
4. Chastity Anuvrat - Bhramacharya Anuvrat (Sthula Maithuna Viraman)
5. Non-attachment Anuvrat- Aparigraha Anuvrat (Sthula Parigraha Viraman)
Three Merit Vows (Guna-vrats):
6. Dik Vrata - Limited area of activity vow
7. Bhoga-Upbhoga Vrata - Limited use of consumable and non-consumable items vow
8. Anartha-danda Vrata - Avoidance of purposeless sins vow
Four Disciplinary Vows (Siksha-vratas):
9. Samayik Vrata - Meditation vow of limited duration
10. Desavakasika Vrata - Activity vow of limiting space
11. Pausadha Vrata - Ascetic's life Vow of limited duration
12. Atithi Samvibhaga Vrata - Limited charity vow
http://www.sacred-texts.com/jai/12vows.txt
'Sthula' means something like 'broadly'. That is for laymen. For monks, the vows are supposed to be absolute. For example laity do not need to cover their mouths as the monks do, they can travel by vehicles and they can engage in business.