4-Letter Words Starting: COI

• the arrangement of the hair (especially a woman's hair)

• a skullcap worn by nuns under a veil or by soldiers under a hood of mail or formerly by British sergeants-at-law

• cover with a coif

• arrange attractively

• a flat metal piece (usually a disc) used as money

• make up

• form by stamping, punching, or printing

• a structure consisting of something wound in a continuous series of loops

• a round shape formed by a series of concentric circles (as formed by leaves or flower petals)

• a transformer that supplies high voltage to spark plugs in a gasoline engine

• a contraceptive device placed inside a woman's womb

• tubing that is wound in a spiral

• reactor consisting of a spiral of insulated wire that introduces inductance into a circuit

• to wind or move in a spiral course

• make without a potter's wheel

• wind around something in coils or loops

• stiff coarse fiber from the outer husk of a coconut