Meaning of “upright” - Learner’s Dictionary

upright

adjective uk us /ˈʌpraɪt/
VERTICAL

B2 straight up or vertical:

Please return your seat to an upright position and fasten your seat belt.
MORAL

honest and morally good:

an upright citizen

(Definition of “upright adjective” from the Cambridge Learner’s Dictionary © Cambridge University Press)