Key in many shortcuts, for short

• Key used with other keys
• Key lacking vowels
• Key not used alone
• Computer key (Abbr.)
• Letters on a keyboard key
• Shortening for shortcuts
• Shortcut key
• Keyboard key involved in shortcuts

Wikipedia Word definitions in Wikipedia
Chymotrypsin-like protease CTRL-1 is an enzyme that in humans is encoded by the CTRL gene .

Wiktionary Word definitions in Wiktionary
abbr. (context slang English) (alternate form of lang=en ctrl.) (abbreviation of lang=en control)