- Under X, each font has a long name which consists of eleven words or
-numbers, separated by dashes. Some fonts also have shorter
-nicknames---@samp{9x15} is such a nickname. You can use either kind of
-name. You can use wildcard patterns for the font name; then Emacs lets
-X choose one of the fonts that match the pattern. Here is an example,
-which happens to specify the font whose nickname is @samp{6x13}:
+ Under X, each font has a long name which consists of fourteen words
+or numbers, separated by dashes. Some fonts also have shorter
+nicknames. For instance, @samp{9x15} is such a nickname. This font
+makes each character nine pixels wide and fifteen pixels high. You
+can use either kind of name. Case is insignificant in both kinds.
+You can use wildcard patterns for the font name; then Emacs lets X
+choose one of the fonts that match the pattern. The wildcard
+character @samp{*} matches any sequence of characters (including none)
+and @samp{?} matches any single character. However, matching is
+implementation-dependent, and can be inaccurate when wildcards match
+dashes in a long name. For reliable results, supply all 14 dashes and
+use wildcards only within a field. Here is an example, which happens
+to specify the font whose nickname is @samp{6x13}: