off book
/ˈɒf bʊk/adverb
Without reference to a book or script; from memory; (in early use) by improvisation, extempore.
- In later use especially with reference to acting..
adjective
1 Finance. Not properly declared for tax or accounting purposes.
2 Theatre and Film. In predicative use: (of an actor) performing without a script, having memorized his or her lines.
Origin
Early 18th century. From off + book.
- Rayleigh limit
- Rayleigh number
- Rayleigh-scattered
- Rayleigh scattering
- Rayleigh's criterion
- Rayleigh wave
- Rayleigh–Jeans
- Rayleigh–Taylor
- rayless
- raylet
- raylike
- Ray, Man
- Raymondia
- Raynaud's disease
- Raynaud's syndrome
- ray of sunshine
- rayogram
- rayogramme
- rayograph
- rayometer
- rayon
- Rayonism
- Rayonist
- rayonnant
- rayonnement