1. Much less
   - let alone, not to mention

1. It does not matter
   - no matter

Encyclopedia: Never mind

• kilocycle per second
• kilogram
• kilogram calorie
• kilogram-meter
• kilogram-metre
• kilogramme
• kilohertz
• kilojoule
• kiloliter
• kilolitre
• kilometer
• kilometers per hour
• kilometre
• kilometres per hour
• kiloton
• kilovolt
• kilovolt-ampere
• kilowatt
• kilowatt hour
• Kilroy
• kilt
• kilted
• kilted up
• kilter
• kiltie