"mh" meaning in English

{
  "forms": [
    {
      "form": "mhs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mh (plural mhs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "mental health"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Social media",
          "orig": "en:Social media",
          "parents": [
            "Internet",
            "Mass media",
            "Computing",
            "Networking",
            "Culture",
            "Media",
            "Technology",
            "Society",
            "Communication",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "Initialism of mental health."
      ],
      "id": "en-mh-en-noun-ULfk-52o",
      "links": [
        [
          "social media",
          "social media"
        ],
        [
          "mental health",
          "mental health#English"
        ]
      ],
      "qualifier": "social media",
      "raw_glosses": [
        "(jargon, social media) Initialism of mental health."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "jargon"
      ]
    }
  ],
  "word": "mh"
}

{
  "forms": [
    {
      "form": "mhs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "mh (plural mhs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "mental health"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English initialisms",
        "English lemmas",
        "English nouns",
        "English words without vowels",
        "en:Social media"
      ],
      "glosses": [
        "Initialism of mental health."
      ],
      "links": [
        [
          "social media",
          "social media"
        ],
        [
          "mental health",
          "mental health#English"
        ]
      ],
      "qualifier": "social media",
      "raw_glosses": [
        "(jargon, social media) Initialism of mental health."
      ],
      "tags": [
        "abbreviation",
        "alt-of",
        "initialism",
        "jargon"
      ]
    }
  ],
  "word": "mh"
}