pre-rollpre-roll /ˈpriː rəʊl $ -roʊl/ noun [countable] 
technical an advertisement that is shown before a video on the Internet
technical an advertisement that is shown before a video on the Internet- Falstaffian
- falter
- faltering
- falteringly
- Falun Gong
- Falwell, the Reverend Jerry
- fame
- famed
- familial
- familiar
- familiarise
- familiarity
- familiarization
- familiarize
- familiarly
- family
- family circle
- family doctor
- family-friendly
- family man
- family name
- family planning
- Family Planning Association
- family practice
- family practitioner