Definition

Noun: The side of an object that faces upward; the highest or most elevated surface. It is the side opposite the bottom or underside.

Usage

Use "upper side" to describe the part of something that is on top or facing the sky. It is often used when comparing two main surfaces of a flat or relatively flat object.

Examples

• Please place the document with the upper side facing up so I can read it.
• The upper side of the leaf is darker and shinier than the underside.
• They painted only the upper side of the wooden plank.

Advanced Usage

• "to show its upper side": To reveal or turn so that the top surface becomes visible.
  • The coin landed and showed its upper side, so I won the toss.

Variants and Related Words

• Top (noun): A more common synonym for the upper side or surface.
• Upperside (noun): A less common, closed compound form with the same meaning.

Synonyms

• Top
• Top side
• Upper surface

Antonyms

• Underside
• Bottom
• Lower side

Noun

1. the highest or uppermost side of anything
   • put your books on top of the desk
   • only the top side of the box was painted