"un" meaning in Letton

{
  "anagrams": [
    {
      "word": "nu"
    }
  ],
  "categories": [
    {
      "kind": "other",
      "name": "Conjonctions en letton",
      "parents": [],
      "source": "w"
    },
    {
      "kind": "other",
      "name": "Letton",
      "orig": "letton",
      "parents": [],
      "source": "w"
    }
  ],
  "lang": "Letton",
  "lang_code": "lv",
  "pos": "conj",
  "pos_title": "Conjonction",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Exemples en letton",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Exemples en letton à traduire",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "Devise de la Lettonie",
          "text": "Tēvzemei un brīvībai.",
          "translation": "Pour la patrie et la liberté."
        },
        {
          "ref": "Staņislavs Lems, Pasaka par Skaitļojamo Mašīnu, kas cīnījās ar Pūķi",
          "text": "Kiberas valdnieks karalis Poleandrs Partobons bija liels karotājs un, būdams modernās stratēģijas cienītājs, augstāk par visu kara mākslā vērtēja kibernētiku."
        }
      ],
      "glosses": [
        "Et."
      ],
      "id": "fr-un-lv-conj-KSW7lFaR"
    }
  ],
  "sounds": [
    {
      "ipa": "\\un\\"
    }
  ],
  "synonyms": [
    {
      "word": "ij"
    },
    {
      "word": "gan"
    }
  ],
  "word": "un"
}

{
  "anagrams": [
    {
      "word": "nu"
    }
  ],
  "categories": [
    "Conjonctions en letton",
    "letton"
  ],
  "lang": "Letton",
  "lang_code": "lv",
  "pos": "conj",
  "pos_title": "Conjonction",
  "senses": [
    {
      "categories": [
        "Exemples en letton",
        "Exemples en letton à traduire"
      ],
      "examples": [
        {
          "ref": "Devise de la Lettonie",
          "text": "Tēvzemei un brīvībai.",
          "translation": "Pour la patrie et la liberté."
        },
        {
          "ref": "Staņislavs Lems, Pasaka par Skaitļojamo Mašīnu, kas cīnījās ar Pūķi",
          "text": "Kiberas valdnieks karalis Poleandrs Partobons bija liels karotājs un, būdams modernās stratēģijas cienītājs, augstāk par visu kara mākslā vērtēja kibernētiku."
        }
      ],
      "glosses": [
        "Et."
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "\\un\\"
    }
  ],
  "synonyms": [
    {
      "word": "ij"
    },
    {
      "word": "gan"
    }
  ],
  "word": "un"
}