letterspacing
noun
let·ter·spac·ing ˈle-tər-ˌspā-siŋ 
variants or letter spacing
plural letterspacings or letter spacings
1
: insertion of space between the letters of a word
2
: the standard distance between adjacent characters (as in composed text) : tracking compare kerning
Example Sentences
Recent Examples on the Web As a quick example, the letterspacing is a little weird around the number 1. 
Kjell Reigstad, Longreads, 25 Sep. 2017
Kjell Reigstad, Longreads, 25 Sep. 2017 Word History
First Known Use
1884, in the meaning defined at sense 1
- trabecule
- trabes
- trabuco
- Trabzon
- trac
- Tracaulon
- trace
- trace bud
- trace chain
- trace element
- trace fossil
- trace horse
- trace of precipitation
- trace one's history back to
- trace one's history to
- trace-bearer
- traceabilities
- traceability
- traceable
- traceableness
- traceablenesses
- traceabler
- traceablest
- traced
- traceless