chibouk or chibouque/chiʹboohk/ noun

• iron pyrites
• iron rations
• Ironsides
• ironstone
• ironware
• ironwood
• ironwork
• irony
• Iroquoian
• Iroquois
• IRQ
• irradiate
• irradiation
• irrational
• irrational number
• irreclaimable
• irreconcilable
• irrecoverable
• irrecusable
• irredeemable
• irredentism
• irreducible
• irrefragable
• irrefrangible
• irrefutable