book has 23 distinct synonyms spread across 8 of its 15 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
a written work or composition that has been published (printed on pages bound together)
“I am reading a good book on economics”
a compilation of the known facts regarding something or someone
“Al Smith used to say, `Let's look at the record'”
a written version of a play or other dramatic composition; used in preparing for a performance
a record in which commercial accounts are recorded
“they got a subpoena to examine our books”
a collection of playing cards satisfying the rules of a card game
a collection of rules or prescribed standards on the basis of which decisions are made
“they run things by the book around here”
the sacred writings of Islam revealed by God to the prophet Muhammad during his life at Mecca and Medina
the sacred writings of the Christian religions
“he went to carry the Word to the heathen”
a number of sheets (ticket or stamps etc.) bound together on one edge
“he bought a book of stamps”
engage for a performance
“Her agent had booked her for several concerts in Tokyo”
Synonyms, antonyms and the broader and narrower relations for book come from Princeton University’s WordNet. Full sources and licences.