it'll /itˈl/ a contraction of it will or it shall

• ichthyosaurian
• ichthyosaurs
• ichthyosaurus
• ichthyoses
• ichthyosis
• ichthyotic
• ichthys
• ichthyses
• ICI
• icicle
• icicles
• icier
• iciest
• many a
• many a little makes a mickle
• many a little pickle a mickle
• many a mickle makes a muckle
• manyata
• manyatas
• manyatta
• manyattas
• many-coloured
• man-year
• man-years
• many-eyed