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Jyutping dai2 min2
Pinyin dǐ miàn

Definitions (粵典–words.hk)
  1. 名詞
    一樣​嘢​嘅​正面​同​反面​嘅​合​稱
    the front and back sides
    • 張紙底面都寫咗嘢。
      张纸底面都写咗嘢。
      zoeng1 zi2 dai2 min2 dou1 se2 zo2 je5.
      Both sides of the paper are used.

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Jyutping dai2 min6
Pinyin dǐ miàn

Definitions (CC-CEDICT)
  1. bottom
  2. bottom side
  3. bottom surface
Definitions (Wiktionary)
  1. noun
    bottom surface; base
Examples (粵典–words.hk)
  1. Cantonese
    底面
    底面
    dai2 min6
    • subface; side of the bottom
  2. Cantonese
    张纸底面都写咗嘢。
    張紙底面都寫咗嘢。
    zoeng1 zi2 dai2 min2 dou1 se2 zo2 je5.
    • Both sides of the paper are used.