ir--, irrational , 
Iraki= Iraqi
Irani, 
Iranian, ,  
Iraqi , 
irascibility, 
irascible, 
irate, , 
ire, 
ireful
iridescence, 
iridescent,   , 
iris , , 
Irish, Irish bridge   , 
Irishism   , 
Irishman
Irishwoman
iritis   
irk, , 
irksome, , 
iron,  , .
iron lung   
iron-bark    
iron-bound , , 
iron-foundry 
iron-grey-, - 
iron-handed, , 
iron-mould   
iron-shod , , 
ironclad , , 
ironfall 
ironic
ironical
ironing iron, , 
ironing-board 
ironmaster  
ironmonger ,  
ironmongery ,  
ironside,  ,  
ironstone ,  
ironware,  
ironwork ,   
ironworker-
ironworks ,   
irony, the irony of fate  , the irony of it is that...   
irradiate, , 
irradiation, , 
irrational, , 
irrationality, , 
irreclaimable  , , 
irreconcilable, , 
irrecoverable, 
irrecusable, 
irredeemable, , 
irredenta
irredentist    
irreducible  ,        , 
irrefragable, , 
irrefrangible, 
irrefutable
irregular,  , 
irregularity,  , 
irrelative, , = irrelevant
irrelevance,    ,  
irrelevant,    
irreligious, 
irremeable, 
irremediable, , 
irremovability
irremovable, , 
irreparable, irreparable loss  , irreparable injury  
irrepatriable,   
irreplaceable, , 
irrepressible, , 
irreproachable, 
irresistibility
irresistible, , 
irresolute, 
irresolution, 
irresolvable, 
irrespective, , irrespective of age   
irresponsibility
irresponsible,   , irresponsible child 
irresponsive ,  , to be irresponsive  
irretention  , irretention of memory  
irretentive    
irretraceable
irretrievable, , 
irreverence
irreverent
irreversible, , 
irrevocability, 
irrevocable, , 
irrigate, 
irrigation, , 
irrigative, 
irritability, , 
irritable,  , 
irritant,  ,    
irritateI. , ,  , ,      II.  , 
irritatingI.  irritate I, ,   II.  irritate II
irritation, , 
irritative
irruption , , 
