1. Surpassing any previously established record
   "a record-breaking high jump"; "record-breaking crowds"

See also: best

• secessionist
• Sechuana
• seckel
• seckel pear
• seclude
• secluded
• seclusion
• seclusive
• secobarbital
• secobarbital sodium
• Seconal
• second
• Second Advent
• Second Adventism
• Second Adventist
• second balcony
• second banana
• second base
• second baseman
• second battle of Ypres
• second best
• second childhood
• second class
• Second Coming
• Second Coming of Christ