No definitions found for 'issue an ultimatum'
Perhaps one of these:
ichnology,
iconolater,
i samuel,
ishmaelitish,
ichnological,
iconology,
ismaili,
ichnolithology,
ismailism,
ismaelite,
ishmeelites,
ishmael,
ichnolite,
ice milk,
isml,
ishmaelite,
ii samuel,
ismaelian,
iconolatry,
ismailian