1. One billionth 10^(-9); more generally, very small

Encyclopedia: Nano-

• starnose mole
• Starr
• starred
• starring
• starry
• starry saxifrage
• starry-eyed
• Stars and Bars
• Stars and Stripes
• starship
• start
• start out
• start over
• start-off
• starter
• starter motor
• starting
• starting block
• starting buffer
• starting gate
• starting handle
• starting line
• starting motor
• starting pitcher
• starting point