pentachord /penˈtə-körd/ (music)

1. A musical instrument with five strings
2. A diatonic series of five notes

• knowledge base
• knowledge-based
• knowledge bases
• knowledge box
• knowledge boxes
• knowledged
• knowledge economies
• knowledge economy
• knowledge engineering
• knowledges
• knowledge worker
• knowledge workers
• knowledging
• known
• known as
• known better days
• know-nothing
• know-nothingism
• know-nothings
• knowns
• know one's onions
• know one's own mind
• know one's place
• know one's stuff
• knows