attune /ə-tūnˈ or (US) -toonˈ/

1. To put in tune
2. To make (one's voice, song, etc) tuneful
3. To make (something) harmonize or accord
4. To accustom or acclimatize

attuneˈment noun

• track rod
• track rods
• tracks
• track-scout
• track-scouts
• track shoe
• track shoes
• tracksuit
• tracksuits
• track-walker
• track-walkers
• trackway
• trackways
• tract
• tractabilities
• tractability
• tractable
• tractableness
• tractablenesses
• tractably
• tractarian
• Tractarianism
• tractarians
• tractate
• tractates