igloo |ˈɪɡluː| — an Eskimo hut; usually built of blocks (of sod or snow) in the shape of a dome

igneous |ˈɪɡnɪəs| — like or suggestive of fire

ignitability  — (uncountable) The condition of being ignitable.

ignitable  — capable of burning

ignite |ɪɡˈnaɪt| — cause to start burning; subject to fire or great heat

igniter |ɪɡˈnaɪtər| — a substance used to ignite or kindle a fire

ignition |ɪɡˈnɪʃn| — the process of initiating combustion or catching fire

ignoble |ɪɡˈnəʊbl| — not of the nobility

ignominious |ˌɪɡnəˈmɪnɪəs| — (used of conduct or character) deserving or bringing disgrace or shame

ignominy |ˈɪɡnəmɪnɪ| — a state of dishonor

ignoramus |ˌɪɡnəˈreɪməs| — an ignorant person

ignorance |ˈɪɡnərəns| — the lack of knowledge or education

ignorant |ˈɪɡnərənt| — uneducated in general; lacking knowledge or sophistication

ignore |ɪɡˈnɔːr| — refuse to acknowledge

iguana |ɪˈɡwɑːnə| — large herbivorous tropical American arboreal lizards with a spiny crest along the back; used as human food in Central America and South America