"-о" meaning in Russian

{
  "forms": [
    {
      "form": "-о",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "-о ́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "-o",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "-ó",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "suffix",
        "head": "-о",
        "head2": "-о́"
      },
      "expansion": "-о or -о́ • (-o or -ó)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "suffix",
  "senses": [
    {
      "categories": [],
      "examples": [
        {
          "text": "однозна́чный (odnoznáčnyj, “unambiguous”) + -о (-o) → однозна́чно (odnoznáčno, “unambiguously”)",
          "type": "example"
        },
        {
          "text": "бы́стрый (býstryj, “quick, fast”) + -о (-o) → бы́стро (býstro, “quickly”)",
          "type": "example"
        },
        {
          "text": "сме́лый (smélyj, “brave”) + -о (-o) → сме́ло (smélo, “bravely”)",
          "type": "example"
        },
        {
          "text": "го́рький (górʹkij, “bitter”) + -о (-o) → го́рько (górʹko, “bitterly”)",
          "type": "example"
        },
        {
          "text": "со́бственный (sóbstvennyj, “(one's) own”) + -о (-o) → со́бственно (sóbstvenno, “in fact, as a matter of fact”)",
          "type": "example"
        },
        {
          "text": "больно́й (bolʹnój, “sick, painful”) + -о (-o) → бо́льно (bólʹno, “painfully; extremely”)",
          "type": "example"
        },
        {
          "text": "глухо́й (gluxój, “deaf; dull, muffled”) + -о (-o) → глу́хо (glúxo, “deafly; dully, in a muffled manner”)",
          "type": "example"
        },
        {
          "text": "дорого́й (dorogój, “expensive, dear”) + -о (-o) → до́рого (dórogo, “expensively, dearly”)",
          "type": "example"
        },
        {
          "text": "ра́вный (rávnyj, “equal”) + -о́ (-ó) → равно́ (ravnó, “equally”)",
          "type": "example"
        },
        {
          "text": "смешно́й (smešnój, “funny, comic”) + -о́ (-ó) → смешно́ (smešnó, “in a funny manner, comically”)",
          "type": "example"
        },
        {
          "text": "у́мный (úmnyj, “clever, wise”) + -о́ (-ó) → умно́ (umnó, “cleverly, wisely”)",
          "type": "example"
        },
        {
          "text": "лёгкий (ljóxkij, “light; easy”) + -о́ (-ó) → легко́ (lexkó, “lightly; easily”)",
          "type": "example"
        },
        {
          "text": "хоро́ший (xoróšij, “good”) + -о́ (-ó) → хорошо́ (xorošó, “well”)",
          "type": "example"
        },
        {
          "text": "горя́чий (gorjáčij, “hot; hot-tempered”) + -о́ (-ó) → горячо́ (gorjačó, “hotly, warmly; passionately”)",
          "type": "example"
        },
        {
          "text": "да́вний (dávnij, “old, ancient, bygone”) + -о́ (-ó) → давно́ (davnó, “long ago”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Suffix added to adjectives to produce adverbs; highly productive"
      ],
      "id": "en--о-ru-suffix-HR8Mh13g",
      "related": [
        {
          "alt": "used to form adverbs from adjectives whose stem ends in -ск- or -ий-/-j-",
          "tags": [
            "-i"
          ],
          "word": "-и"
        }
      ],
      "synonyms": [
        {
          "english": "after palatalized consonants",
          "roman": "-e",
          "word": "-е"
        },
        {
          "word": "hushing consonants and ц"
        }
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "form": "-о",
      "ipa": "[ə]"
    },
    {
      "ipa": "[ˈo]"
    }
  ],
  "word": "-о"
}

{
  "forms": [
    {
      "form": "-о",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "-о ́",
      "tags": [
        "canonical"
      ]
    },
    {
      "form": "-o",
      "tags": [
        "romanization"
      ]
    },
    {
      "form": "-ó",
      "tags": [
        "romanization"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "ru",
        "2": "suffix",
        "head": "-о",
        "head2": "-о́"
      },
      "expansion": "-о or -о́ • (-o or -ó)",
      "name": "head"
    }
  ],
  "lang": "Russian",
  "lang_code": "ru",
  "pos": "suffix",
  "related": [
    {
      "alt": "used to form adverbs from adjectives whose stem ends in -ск- or -ий-/-j-",
      "tags": [
        "-i"
      ],
      "word": "-и"
    }
  ],
  "senses": [
    {
      "categories": [
        "Russian 1-syllable words",
        "Russian lemmas",
        "Russian suffixes",
        "Russian terms with IPA pronunciation",
        "Russian terms with redundant head parameter"
      ],
      "examples": [
        {
          "text": "однозна́чный (odnoznáčnyj, “unambiguous”) + -о (-o) → однозна́чно (odnoznáčno, “unambiguously”)",
          "type": "example"
        },
        {
          "text": "бы́стрый (býstryj, “quick, fast”) + -о (-o) → бы́стро (býstro, “quickly”)",
          "type": "example"
        },
        {
          "text": "сме́лый (smélyj, “brave”) + -о (-o) → сме́ло (smélo, “bravely”)",
          "type": "example"
        },
        {
          "text": "го́рький (górʹkij, “bitter”) + -о (-o) → го́рько (górʹko, “bitterly”)",
          "type": "example"
        },
        {
          "text": "со́бственный (sóbstvennyj, “(one's) own”) + -о (-o) → со́бственно (sóbstvenno, “in fact, as a matter of fact”)",
          "type": "example"
        },
        {
          "text": "больно́й (bolʹnój, “sick, painful”) + -о (-o) → бо́льно (bólʹno, “painfully; extremely”)",
          "type": "example"
        },
        {
          "text": "глухо́й (gluxój, “deaf; dull, muffled”) + -о (-o) → глу́хо (glúxo, “deafly; dully, in a muffled manner”)",
          "type": "example"
        },
        {
          "text": "дорого́й (dorogój, “expensive, dear”) + -о (-o) → до́рого (dórogo, “expensively, dearly”)",
          "type": "example"
        },
        {
          "text": "ра́вный (rávnyj, “equal”) + -о́ (-ó) → равно́ (ravnó, “equally”)",
          "type": "example"
        },
        {
          "text": "смешно́й (smešnój, “funny, comic”) + -о́ (-ó) → смешно́ (smešnó, “in a funny manner, comically”)",
          "type": "example"
        },
        {
          "text": "у́мный (úmnyj, “clever, wise”) + -о́ (-ó) → умно́ (umnó, “cleverly, wisely”)",
          "type": "example"
        },
        {
          "text": "лёгкий (ljóxkij, “light; easy”) + -о́ (-ó) → легко́ (lexkó, “lightly; easily”)",
          "type": "example"
        },
        {
          "text": "хоро́ший (xoróšij, “good”) + -о́ (-ó) → хорошо́ (xorošó, “well”)",
          "type": "example"
        },
        {
          "text": "горя́чий (gorjáčij, “hot; hot-tempered”) + -о́ (-ó) → горячо́ (gorjačó, “hotly, warmly; passionately”)",
          "type": "example"
        },
        {
          "text": "да́вний (dávnij, “old, ancient, bygone”) + -о́ (-ó) → давно́ (davnó, “long ago”)",
          "type": "example"
        }
      ],
      "glosses": [
        "Suffix added to adjectives to produce adverbs; highly productive"
      ],
      "tags": [
        "morpheme"
      ]
    }
  ],
  "sounds": [
    {
      "form": "-о",
      "ipa": "[ə]"
    },
    {
      "ipa": "[ˈo]"
    }
  ],
  "synonyms": [
    {
      "english": "after palatalized consonants",
      "roman": "-e",
      "word": "-е"
    },
    {
      "word": "hushing consonants and ц"
    }
  ],
  "word": "-о"
}