pentachord /penˈtə-körd/ (music)

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

• ilio-
• ilium
• Ilium
• ilk
• ilka
• ilkaday
• ilkadays
• ilks
• ill
• I'll
• Ill.
• ill-advised
• ill-advisedly
• ill-affected
• illapse
• illapsed
• illapses
• illapsing
• illaqueable
• illaqueate
• illaqueated
• illaqueates
• illaqueating
• illaqueation
• illaqueations