"tête de pieu" meaning in Français

{
  "categories": [
    {
      "kind": "other",
      "name": "Compositions en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Locutions nominales en français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en anglais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Traductions en néerlandais",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Français",
      "orig": "français",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Ê en français",
      "orig": "ê en français",
      "parents": [],
      "source": "w"
    }
  ],
  "etymology_texts": [
    "Composé de tête et de pieu."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "fondation"
    },
    {
      "word": "pieu"
    },
    {
      "word": "receper"
    }
  ],
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Lexique en français de la construction",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "Partie supérieure d'un pieu, sur laquelle repose la structure hors terre d'un bâtiment ou d'un ouvrage d'art."
      ],
      "id": "fr-tête_de_pieu-fr-noun-iGJVAjPd",
      "topics": [
        "construction"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "pile head"
    },
    {
      "lang": "Néerlandais",
      "lang_code": "nl",
      "tags": [
        "masculine"
      ],
      "word": "paalkop"
    }
  ],
  "word": "tête de pieu"
}

{
  "categories": [
    "Compositions en français",
    "Locutions nominales en français",
    "Traductions en anglais",
    "Traductions en néerlandais",
    "français",
    "ê en français"
  ],
  "etymology_texts": [
    "Composé de tête et de pieu."
  ],
  "lang": "Français",
  "lang_code": "fr",
  "pos": "noun",
  "pos_title": "Locution nominale",
  "related": [
    {
      "word": "fondation"
    },
    {
      "word": "pieu"
    },
    {
      "word": "receper"
    }
  ],
  "senses": [
    {
      "categories": [
        "Lexique en français de la construction"
      ],
      "glosses": [
        "Partie supérieure d'un pieu, sur laquelle repose la structure hors terre d'un bâtiment ou d'un ouvrage d'art."
      ],
      "topics": [
        "construction"
      ]
    }
  ],
  "tags": [
    "feminine"
  ],
  "translations": [
    {
      "lang": "Anglais",
      "lang_code": "en",
      "word": "pile head"
    },
    {
      "lang": "Néerlandais",
      "lang_code": "nl",
      "tags": [
        "masculine"
      ],
      "word": "paalkop"
    }
  ],
  "word": "tête de pieu"
}