trichord /trīˈkörd/

1. Three-stringed
2. With three strings to one note

1. A three-stringed instrument
2. A triad

• lock-hospitals
• lockhouse
• lockhouses
• Lockian
• lock in
• lock-in
• locking
• locking-nut
• lock-ins
• Lockist
• lockjaw
• lockjaws
• lock-keeper
• lock-keepers
• lockless
• lockman
• lockmen
• locknut
• locknuts
• lock on
• lock on to
• lock out
• lockout
• lockouts
• lockpick