Similar words: balaclava, lack, flack, black, slack, lackey, blacken, slacken. Meaning: [klæk] 
n. 1. a sharp abrupt noise as if two objects hit together; may be repeated 2. a simple valve with a hinge on one side; allows fluid to flow in only one direction. v. 1. make a rattling sound 2. make a clucking sounds, characteristic of hens 3. speak (about unimportant matters) rapidly and incessantly.
n. 1. a sharp abrupt noise as if two objects hit together; may be repeated 2. a simple valve with a hinge on one side; allows fluid to flow in only one direction. v. 1. make a rattling sound 2. make a clucking sounds, characteristic of hens 3. speak (about unimportant matters) rapidly and incessantly. 
Random good picture Not show
31. JENNIFER A. CLACK, a Reader in vertebrate paleontology and doctor of science at the University of Cambridge, has been studying tetrapod origins for 25 years.
32. You want me to clack that jaw, make you go nigh - nigh?
More similar words: balaclava, lack, flack, black, slack, lackey, blacken, slacken, black out, lacking, slacker, clawback, jet black, black hand, black eye, blacking, for lack of, blackleg, blackball, blacklist, in the black, black hole, black list, black sheep, blackness, blackmail, blackbody, blackface, blacksmith, lackluster.