Start of the middle row of letters on a typewriter

• Left-hand letters
• Home row letters
• Home position, for some
• Left hand's starting position, for typing
• Home row keys for the left hand
• Left hand's starting position, for a touch typist
• Typist's left hand home keys
• Left hand's home row keys

Wiktionary Word definitions in Wiktionary
init. (context military Japan English) air self-defense force — the Japanese air force n. (alternative spelling of asdf English)