There are 13 11-letter words that start with 'ven'.
| vendibility | venerations | venesection | 
| venialities | ventilating | ventilation | 
| ventilators | ventilatory | ventricular | 
| ventriculus | ventriloquy | venturesome | 
| venturously | ||
Note: These 13 11-letter words that start with 'ven' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with vent, vene, vend, veno, veni, vena, veng, venu.
4-letter words start with 'ven' (3)