diaphragm — Your diaphragm is a muscle between your lungs and your stomach. It is used when you breathe.
telegram — a message or communication sent by telegraph; a telegraphic dispatch.
Four-or-more syllable rhymes
diameter — The diameter of a round object is the length of a straight line that can be drawn across it, passing through the middle of it.
iris diaphragm — a composite diaphragm with a central aperture readily adjustable for size, used to regulate the amount of light admitted to a lens or optical system.
variety — the state of being varied or diversified: to give variety to a diet.
