Semantic UI Icons-font not loading
You don't need to use font-awesome of any other library try cdn first Official icon.min.css
<link rel='stylesheet prefetch' href='https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.4.1/components/icon.min.css'>
somethimes this doesn't work so what you can do is go semantic-ui official page download semantic ui zip folder and extract in component folder you can find icon.min.css
include that file in index.html
<link rel="stylesheet" href="icon.min.css">
try to display those icon Official docs
<i class="disabled users icon"></i>
ENJOY
Digging in the semantic CSS file reveals that the fonts need to be located here (relative to your semantic.css): themes/default/assets/fonts/
Source: https://github.com/Semantic-Org/Semantic-UI/blob/master/dist/semantic.css#L5466-5467
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title></title>
<link rel='stylesheet prefetch' href='http://cdnjs.cloudflare.com/ajax/libs/semantic-ui/0.16.1/css/semantic.min.css'>
<link rel='stylesheet prefetch' href='https://cdnjs.cloudflare.com/ajax/libs/semantic-ui/2.1.8/components/icon.min.css'>
</head>
<body>
<h1>Icon Example</h1>
<a class="item"><i class="alarm icon"></i>Notifications</a>
<a class="item"><i class="mail outline icon"></i>Messages</a>
</body>
</html>you can try taking a look at the above snippet. You may also use the below link for other similar issues:
https://cdnjs.com/libraries/semantic-ui