This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. One that edits, prints, publishes, or binds books.

n. One who accepts and pays off bets, as on a horserace. Also called bookie.

n. A person who prints or binds books

n. A person (or a business) who calculates odds and accepts bets, especially on horse racing; a bookie

n. One who writes and publishes books; especially, one who gathers his materials from other books; a compiler.

n. A betting man who “makes a book.” See To make a book, under Book, n.

n. A printer and binder of books.

n. One who writes and publishes books; especially, a mere compiler.

n. One who makes a book (see book, n., 9) on a race or other doubtful event; a professional betting man. See extract.

n. a maker of books; someone who edits or publishes or binds books

n. a gambler who accepts and pays off bets (especially on horse races)

"But the U.K. online bookmaker is asking investors to make a risky gamble on its initial public offering."

maker    shaper    gambler   

bookbinding    betting shop   

book   

compiler   

paphlagonian    trend-setter    age    sheepskin    press-gang    passera    jawing    decurion    child-woman    joshing