On the standards track: Yes
Is Experimental: No
Is Deprecated: No
In Chrome version 55 on 2016-12-01
In Chrome Android version 55 on 2016-12-06
In Edge version 12 on 2015-07-29
In Firefox version 6 on 2011-08-16 Note: For English, Firefox uses an en-US dictionary
In Firefox for Android version 6 on 2011-08-16 Note: For English, Firefox for Android uses an en-US dictionary
In Internet Explorer version 10 on 2012-10-26
In Quest Browser version 5.0 on undefined
In Opera version 44 on 2017-03-21
In Opera Android version 43 on 2017-09-27
In Safari version 5.1 on 2011-07-20 Note: For English, Safari uses different en-GB and en-US dictionaries.
In Safari on iOS version 5 on 2011-10-12 Note: For English, Safari on iOS uses different en-GB and en-US dictionaries.
In Samsung Internet version 6.0 on 2017-08-23
In WebView Android version 55 on 2016-12-06
In WebView on iOS version 5 on 2011-10-12 Note: For English, WebView on iOS uses different en-GB and en-US dictionaries.