open book

Noun

 * 1)  Something of which salient aspects are obvious or easily interpreted.
 * 2) * 2009, May 21, Barack Obama, speech, Protecting Our Security and Our Values
 * But I have never argued – and never will – that our most sensitive national security matters should be an open book.
 * 1)  A person who through naivete responds candidly to questions or openly displays their emotions or intentions.
 * 2)  An open book decomposition.
 * 3)  An inside angle in the rock.
 * 1)  A person who through naivete responds candidly to questions or openly displays their emotions or intentions.
 * 2)  An open book decomposition.
 * 3)  An inside angle in the rock.
 * 1)  An open book decomposition.
 * 2)  An inside angle in the rock.
 * 1)  An inside angle in the rock.

Synonyms

 * one who wears one's heart on one's sleeve

Antonyms

 * closed book

Translations

 * Arabic: :
 * Chinese:
 * Mandarin: 一目瞭然的事物
 * Finnish: avoin kirja
 * French: livre ouvert
 * German: offenes Buch
 * Hungarian: nyitott könyv
 * Italian: libro aperto
 * Japanese: :
 * Korean: :
 * Polish:
 * Portuguese: livro aberto
 * Russian: откры́тая кни́га
 * Spanish: libro abierto


 * Arabic: :
 * Chinese:
 * Mandarin: 易於了解的人, 胸無城府的人
 * Finnish: avoin kirja
 * French:
 * German: offenes Buch
 * Italian: libro aperto
 * Japanese: :
 * Korean: :
 * Macedonian: селски буквар
 * Polish: ,
 * Portuguese: livro aberto
 * Russian: откры́тая кни́га, на лбу́ напи́сано
 * Spanish: libro abierto