font-width-table

font-width-table is a variable defined in `C source code'.
Its value is shown below.

Documentation:
Alist of font width symbols vs the corresponding numeric values.
See `font-weight-table' for the format of the vector.

Value:

[[50 ultra-condensed ultracondensed]
 [63 extra-condensed extracondensed]
 [75 condensed compressed narrow]
 [87 semi-condensed semicondensed demicondensed]
 [100 normal medium regular unspecified]
 [113 semi-expanded semiexpanded demiexpanded]
 [125 expanded]
 [150 extra-expanded extraexpanded]
 [200 ultra-expanded ultraexpanded wide]]