supplementary charset

noun
UK /ˌsʌplɪˈmentəri ˈtʃɑːset/
US /ˌsʌplɪˈmentəri ˈtʃɑːrset/

An extra set of letters and symbols that a computer can use.

The program loaded a supplementary charset to show the special characters.


OTHER MEANINGS

2. A group of additional characters added to a main set to support more languages.

The supplementary charset includes letters for several Asian languages.

3. A secondary collection of symbols used when the primary set is not enough.

If the text shows boxes, try switching to the supplementary charset.

4. An optional set of characters that extends a basic encoding.

The old email system needed a supplementary charset for emoji.