"on the side" meaning in English

{
  "etymology_text": ": on the side < → δείτε τις λέξεις on, the και side",
  "forms": [
    {
      "form": "on the side"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "examples": [
        {
          "text": "He has some money on the side.",
          "translation": "Έχει κάποια χρήματα στην άκρη."
        }
      ],
      "glosses": [
        "στην άκρη, επιπλέον"
      ],
      "id": "el-on_the_side-en-phrase-vkhqUFZ0"
    },
    {
      "examples": [
        {
          "text": "Come on let’s have a small drink on the side.",
          "translation": "Έλα να πιούμε ένα ποτηράκι στα κρυφά."
        },
        {
          "text": "He lives with his wife but also sees his mistress on the side.",
          "translation": "Ζει με τη γυναίκα του αλλά βλέπει και τη φιλενάδα του στη ζούλα."
        }
      ],
      "glosses": [
        "στα κρυφά, στη ζούλα"
      ],
      "id": "el-on_the_side-en-phrase-3iQhv39l"
    },
    {
      "examples": [
        {
          "text": "Prices were on the high side.",
          "translation": "Οι τιμές ήταν μάλλον υψηλές."
        },
        {
          "text": "The weather is on the cold side.",
          "translation": "Ο καιρός είναι μάλλον ψυχρός."
        }
      ],
      "glosses": [
        "μάλλον"
      ],
      "id": "el-on_the_side-en-phrase-P9BDxznx",
      "raw_tags": [
        "+επίθετο"
      ]
    }
  ],
  "word": "on the side"
}

{
  "etymology_text": ": on the side < → δείτε τις λέξεις on, the και side",
  "forms": [
    {
      "form": "on the side"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "examples": [
        {
          "text": "He has some money on the side.",
          "translation": "Έχει κάποια χρήματα στην άκρη."
        }
      ],
      "glosses": [
        "στην άκρη, επιπλέον"
      ]
    },
    {
      "examples": [
        {
          "text": "Come on let’s have a small drink on the side.",
          "translation": "Έλα να πιούμε ένα ποτηράκι στα κρυφά."
        },
        {
          "text": "He lives with his wife but also sees his mistress on the side.",
          "translation": "Ζει με τη γυναίκα του αλλά βλέπει και τη φιλενάδα του στη ζούλα."
        }
      ],
      "glosses": [
        "στα κρυφά, στη ζούλα"
      ]
    },
    {
      "examples": [
        {
          "text": "Prices were on the high side.",
          "translation": "Οι τιμές ήταν μάλλον υψηλές."
        },
        {
          "text": "The weather is on the cold side.",
          "translation": "Ο καιρός είναι μάλλον ψυχρός."
        }
      ],
      "glosses": [
        "μάλλον"
      ],
      "raw_tags": [
        "+επίθετο"
      ]
    }
  ],
  "word": "on the side"
}