1. in a vertical position; standing straight up
2. honest and morally correct

1. in or into a vertical position

1. a vertical post or support
2. an upright piano

Examples

• Please sit upright in your chair.
• The fence posts must be perfectly upright.
• She is known as an upright citizen who always does the right thing.
• He pulled himself upright after falling down.
• The carpenter installed wooden uprights to support the roof.
• They bought an upright piano for their living room.
• The judge was respected for his upright character.
• Stand upright with your shoulders back.