1. Being one more than eighty
   - eighty-one, 81

See also: cardinal

• synchro
• synchrocyclotron
• synchroflash
• synchromesh
• synchronal
• synchroneity
• synchronic
• synchronic linguistics
• synchronicity
• synchronisation
• synchronise
• synchronised
• synchronised swimming
• synchroniser
• synchronising
• synchronism
• synchronistic
• synchronization
• synchronize
• synchronized
• synchronized swimming
• synchronizer
• synchronizing
• synchronoscope
• synchronous