1. 1,000,000,000 periods per second
   - gigahertz, GHz, gigacycle per second, Gc

Derived forms: gigacycles

Type of: rate

• topper
• topping
• toppingly
• topple
• tops
• topsail
• topside
• topsoil
• topspin
• topsy-turvily
• topsy-turvy
• topsy-turvydom
• topsy-turvyness
• TOPV
• toque
• tor
• Toradol
• Torah
• torc
• torch
• torch race
• torch singer
• torch song
• torchbearer
• torcher