Light the Stream

place into "Site-wide custom HTML before </body>"
The code currently changes District ---> department
So just change the "department" to whatever you need
 

<script>
(function () {
  // What we’re replacing
  const replacements = [
    { regex: /\bdistrict\b/g,  replacement: 'department' },
    { regex: /\bDistrict\b/g,  replacement: 'Department' }
  ];

  function replaceTextInDocument(doc) {
    if (!doc || !doc.body) return;

    const walker = doc.createTreeWalker(
      doc.body,
      NodeFilter.SHOW_TEXT,
      {
        acceptNode(node) {
          // Skip empty / whitespace-only nodes to avoid extra work
          if (!node.nodeValue || !node.nodeValue.trim()) {
            return NodeFilter.FILTER_REJECT;
          }
          return NodeFilter.FILTER_ACCEPT;
        }
      }
    );

    let node;
    while ((node = walker.nextNode())) {
      let text = node.nodeValue;
      let newText = text;

      replacements.forEach(({ regex, replacement }) => {
        newText = newText.replace(regex, replacement);
      });

      if (newText !== text) {
        node.nodeValue = newText;
      }
    }
  }

  function processIframes(doc) {
    const iframes = doc.getElementsByTagName('iframe');
    Array.from(iframes).forEach((iframe) => {
      function handleIframe() {
        try {
          const idoc = iframe.contentDocument || iframe.contentWindow.document;
          replaceTextInDocument(idoc);
        } catch (e) {
          // Likely a cross-origin iframe (YouTube, Maps, etc.) – we can’t touch it.
        }
      }

      // If it's already loaded
      try {
        if (iframe.contentDocument && iframe.contentDocument.readyState === 'complete') {
          handleIframe();
        } else {
          iframe.addEventListener('load', handleIframe);
        }
      } catch (e) {
        // Ignore cross-origin access errors
      }
    });
  }

  function run(doc) {
    replaceTextInDocument(doc);
    processIframes(doc);
  }

  if (document.readyState === 'loading') {
    document.addEventListener('DOMContentLoaded', function () {
      run(document);
    });
  } else {
    run(document);
  }
})();
</script>