stock warrant: a written certificate that gives the holder the right to purchase shares of a stock for a specified price within a specified period of time
guarantee: a written assurance that some product or service will be provided or will meet certain specifications
ventricular septal defect: a common congenital heart defect; an abnormal opening in the septum dividing the ventricles allows blood to pass directly from the left to the right ventricle; large openings may cause congestive heart failure