[{"Bold_text": "noun", "List Items": ["one of the horny structures forming the principal covering of birds, consisting typically of a hard, tubular portion attached to the body and tapering into a thinner, stemlike portion bearing a series of slender, barbed processes that interlock to form a flat structure on each side.", "kind; character; nature:two boys of the same feather.", "something like a feather, as a tuft or fringe of hair.", "something very light, small, or trivial:Your worry is a mere feather.", "Archery.one of the vanes at the tail of an arrow or dart.", "Carpentry.a spline for joining the grooved edges of two boards.", "Masonry.plug and feathers", "a featherlike flaw, especially in a precious stone.", "Machinery. feather key feather key.", "Archaic. attire .", "Obsolete. plumage ."]}, {"Bold_text": "verb (used with object)", "List Items": ["to provide with feathers, as an arrow.", "to clothe or cover with or as with feathers.", "Rowing.to turn (an oar) after a stroke so that the blade becomes nearly horizontal, and hold it thus as it is moved back into position for the next stroke.", "Aeronautics.to change the blade angle of (a propeller) so that the chords of the blades are approximately parallel to the line of flight.to turn off (an engine) while in flight.", "to change the blade angle of (a propeller) so that the chords of the blades are approximately parallel to the line of flight.", "to turn off (an engine) while in flight."]}, {"Bold_text": "verb (used without object)", "List Items": ["to grow feathers.", "to be or become feathery appearance.", "to move like feathers.", "Rowing.to feather an oar."]}, {"Bold_text": "verb phrase", "List Items": ["South Midland U.S.to attack (a person, task, or problem) vigorously."]}]