From Longman Dictionary of Contemporary Englishexcellenceex‧cel‧lence /ˈeksələns/ ●●○ noun [uncountable] GOOD/EXCELLENTthe quality of being excellentexcellence of the excellence of the performanceexcellence in the university’s reputation for excellence centres of academic excellence → par excellence
Examples from the Corpus
excellence• Corddry was known for his consistent excellence in reporting on defense and foreign policy issues.• It is awarded biennially for excellence in physical organic chemistry embracing the relationship between structure and reactivity.• We could become a country of citizens, not subjects, striving for excellence rather than settling for second best.• Our target is excellence for all.• Great Groups tend to be islands of excellence that exist apart from their surroundings.• Or can they maintain their level of excellence?From Longman Business Dictionaryexcellenceex‧cel‧lence /ˈeksələns/ noun [uncountable]HUMAN RESOURCES when someone is very good at something, or when something is of very high qualityEmployers should reward achievement and encourage excellence. 