Collins dictionary. 
Title on dust jacket:  Collins English dictionary 

 - 11th ed. 
 - Glasgow :  HarperCollins,  2011. 
 - xx, 1899 p. ;  27 cm. 
<br/><br/> Previous edition 2010. 
<br/><br/><label>ISBN: </label>9780007437863 (UK ed.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Dictionaries.