"um-" meaning in Tagalog

{
  "etymology_text": "See -um-.",
  "forms": [
    {
      "form": "ᜂᜋ᜔",
      "tags": [
        "Baybayin"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "prefix",
        "b": "um"
      },
      "expansion": "um- (Baybayin spelling ᜂᜋ᜔)",
      "name": "tl-head"
    }
  ],
  "hyphenation": [
    "um-"
  ],
  "lang": "Tagalog",
  "lang_code": "tl",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "Pages with 9 entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tagalog entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tagalog terms with Baybayin script",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Tagalog terms with missing Baybayin script entries",
          "parents": [],
          "source": "w"
        },
        {
          "_dis": "25 20 0 17 0 0 3 3 3 3 3 3 13 0 0 3 3",
          "kind": "other",
          "name": "Pages with 9 entries",
          "parents": [],
          "source": "w+disamb"
        },
        {
          "_dis": "20 17 0 22 0 0 4 4 4 4 4 4 10 0 0 4 4",
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w+disamb"
        }
      ],
      "examples": [
        {
          "english": "It rained a while ago.",
          "text": "Umulan kanina.",
          "type": "example"
        },
        {
          "english": "I already left.",
          "text": "Umalis na ako.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "-um- for verbs starting with a vowel"
        }
      ],
      "glosses": [
        "prefix form of -um- for verbs starting with a vowel"
      ],
      "id": "en-um--tl-prefix-3SSsosP2",
      "links": [
        [
          "-um-",
          "-um-#Tagalog"
        ]
      ],
      "tags": [
        "form-of",
        "morpheme",
        "prefix"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʔum/",
      "tags": [
        "Standard-Tagalog"
      ]
    },
    {
      "ipa": "[ʔʊm]",
      "tags": [
        "Standard-Tagalog"
      ]
    }
  ],
  "word": "um-"
}

{
  "categories": [
    "Pages with 9 entries",
    "Pages with entries"
  ],
  "etymology_text": "See -um-.",
  "forms": [
    {
      "form": "ᜂᜋ᜔",
      "tags": [
        "Baybayin"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "prefix",
        "b": "um"
      },
      "expansion": "um- (Baybayin spelling ᜂᜋ᜔)",
      "name": "tl-head"
    }
  ],
  "hyphenation": [
    "um-"
  ],
  "lang": "Tagalog",
  "lang_code": "tl",
  "pos": "prefix",
  "senses": [
    {
      "categories": [
        "Pages with 9 entries",
        "Pages with entries",
        "Tagalog 1-syllable words",
        "Tagalog entries with incorrect language header",
        "Tagalog lemmas",
        "Tagalog prefixes",
        "Tagalog terms with Baybayin script",
        "Tagalog terms with IPA pronunciation",
        "Tagalog terms with missing Baybayin script entries",
        "Tagalog terms with usage examples"
      ],
      "examples": [
        {
          "english": "It rained a while ago.",
          "text": "Umulan kanina.",
          "type": "example"
        },
        {
          "english": "I already left.",
          "text": "Umalis na ako.",
          "type": "example"
        }
      ],
      "form_of": [
        {
          "word": "-um- for verbs starting with a vowel"
        }
      ],
      "glosses": [
        "prefix form of -um- for verbs starting with a vowel"
      ],
      "links": [
        [
          "-um-",
          "-um-#Tagalog"
        ]
      ],
      "tags": [
        "form-of",
        "morpheme",
        "prefix"
      ]
    }
  ],
  "sounds": [
    {
      "ipa": "/ʔum/",
      "tags": [
        "Standard-Tagalog"
      ]
    },
    {
      "ipa": "[ʔʊm]",
      "tags": [
        "Standard-Tagalog"
      ]
    }
  ],
  "word": "um-"
}