How to say "surface" in Japanese

• 表おもてJLPT N4approx.Common
  nounRefers to the front or outside of something as opposed to its back or inside — which side is showing or facing out. For the physical surface of an object, 表面 is usually the better fit.
• 表面ひょうめんJLPT N3approx.Common
  no-adjectiveThe most direct word for the surface of an object — its outer face as opposed to the inside. When you need 'surface' as a plain noun, this is usually the word to reach for.
  突然とつぜんの風かぜで池いけの表面ひょうめんが波立なみだった。↗

  A sudden wind agitated the surface of the pond.
• 表層ひょうそうCommon
  nounMeans an outer layer rather than a bare surface: the topmost stratum of something, considered against what lies beneath. Choose this when 'surface' really means a superficial layer or level.
• 上部じょうぶCommon
  no-adjectiveSeldom the word you want for 'surface': it refers to the upper part or top section of something. Reach for it only when 'surface' means the top portion rather than the outer face.
  上部じょうぶ前方ぜんぽうで何なんかが光ひかっている。↗

  Something is flashing up ahead.
• 浮き出るうきでるCommon
  ichidan verb, intransitive verbThe verb for something rising to the surface or coming into view from below. Use it when 'surface' works as a verb — something hidden or submerged comes up and becomes visible.

Choose 表面 for the physical surface of an object, 表 for the front or outside of something, 表層 for an outer layer, 上部 only for the top part, and the verb 「浮き出る」 when something rises to the surface.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 表おもてsurface
• 表面ひょうめんsurface
• 表層ひょうそうsurface
• 上部じょうぶtop part
• 浮き出るうきでるto rise to the surface
• うわべexterior
• 上面うわつらsurface
• サーフェイスsurface
• 上側うわかわupper side
• 甲板こういたtop board (of a table, counter, etc.)
• 上面じょうめんtop (side)
• 上うわupper
• 浮き出すうきだすto surface
• 浮かび出るうかびでるto surface
• 皮相ひそうsurface
• 上っ面うわっつらsurface
• 上っ側うわっかわupper side
• 天板てんばんtop (of a table, counter, etc.)
• 表面的ひょうめんてきsuperficial
• 外面的がいめんてきexternal
• 上うえsurface
• 面おもてsurface
• つらsurface
• 肌はだsurface
• 皮肉ひにく(only) surface
• 面めんsurface (esp. a geometrical surface)
• 出るでるto appear