Bing found the following results
UPPER | definition in the Cambridge English Dictionary
Upper Definition & Meaning - Merriam-Webster
UPPER | English meaning - Cambridge Dictionary
UPPER Definition & Meaning | Dictionary.com
Upper - Definition, Meaning & Synonyms | Vocabulary.com
UPPER definition in American English | Collins English Dictionary
UPPER definition and meaning | Collins English Dictionary
Upper - definition of upper by The Free Dictionary
upper adjective - Definition, pictures, pronunciation and usage …
upper - WordReference.com Dictionary of English