obligato/obliʹgahtoh/ adj and noun

• infinitely
• infinitesimal
• infinitesimal calculus
• infinitive
• infinitude
• infinity
• infirm
• infirmary
• infirmity
• in fits
• infix
• in flagrante delicto
• inflame
• in flames
• inflammable
• inflammation
• inflammatory
• inflatable
• inflate
• inflated
• inflation
• inflationary spiral
• inflationism
• inflect
• inflection