smartbooksmart‧book /ˈsmɑːtbʊk $ ˈsmɑːrt-/ noun [countable] 
a piece of equipment which works as a smartphone but is slightly larger and has a keyboard
a piece of equipment which works as a smartphone but is slightly larger and has a keyboard- extraordinary rendition
- extrapolate
- extrapolation
- extra-sensory perception
- extraterrestrial
- extraterritorial
- extra time
- extravagance
- extravagant
- extravagantly
- extravaganza
- extravert
- extra virgin
- extreme
- extreme fighting
- extremely
- extremis
- extremism
- extremist
- extremity
- extremophile
- extricate
- extrinsic
- extroversion
- extrovert