"γάμμα" meaning in Grec ancien

{
  "categories": [
    {
      "kind": "other",
      "name": "Mots en grec ancien issus d’un mot en phénicien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms communs en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Noms des lettres grecques en grec ancien",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Grec ancien",
      "orig": "grec ancien",
      "parents": [],
      "source": "w"
    }
  ],
  "derived": [
    {
      "lang": "Grec",
      "lang_code": "el",
      "word": "γάμα"
    },
    {
      "lang": "Latin",
      "lang_code": "la",
      "word": "gamma"
    }
  ],
  "etymology_texts": [
    "Mot phénicien tout comme la lettre 𐤂."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "γάμμα, gámma"
  ],
  "senses": [
    {
      "glosses": [
        "Gamma, la troisième lettre de l’alphabet grec exprimant le son palatal *\\ɡ\\ entre κ et χ mais le son *\\n\\ devant κ, χ et ξ ou un γ redoublé"
      ],
      "id": "fr-γάμμα-grc-noun-PqIvnEZ0"
    }
  ],
  "sounds": [
    {
      "ipa": "*\\ˈɡa.mːa\\"
    }
  ],
  "synonyms": [
    {
      "word": "Γ"
    },
    {
      "word": "γ"
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "γάμμα"
}

{
  "categories": [
    "Mots en grec ancien issus d’un mot en phénicien",
    "Noms communs en grec ancien",
    "Noms des lettres grecques en grec ancien",
    "grec ancien"
  ],
  "derived": [
    {
      "lang": "Grec",
      "lang_code": "el",
      "word": "γάμα"
    },
    {
      "lang": "Latin",
      "lang_code": "la",
      "word": "gamma"
    }
  ],
  "etymology_texts": [
    "Mot phénicien tout comme la lettre 𐤂."
  ],
  "lang": "Grec ancien",
  "lang_code": "grc",
  "pos": "noun",
  "pos_title": "Nom commun",
  "raw_tags": [
    "γάμμα, gámma"
  ],
  "senses": [
    {
      "glosses": [
        "Gamma, la troisième lettre de l’alphabet grec exprimant le son palatal *\\ɡ\\ entre κ et χ mais le son *\\n\\ devant κ, χ et ξ ou un γ redoublé"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "*\\ˈɡa.mːa\\"
    }
  ],
  "synonyms": [
    {
      "word": "Γ"
    },
    {
      "word": "γ"
    }
  ],
  "tags": [
    "neuter"
  ],
  "word": "γάμμα"
}