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

• investigators
• investigatory
• investing
• investitive
• investiture
• investitures
• investment
• investment bank
• investment banks
• investment bond
• investment bonds
• investment club
• investment clubs
• investments
• investment trust
• investor
• investors
• invests
• inveteracies
• inveteracy
• inveterate
• inveterately
• inveterateness
• inveteratenesses
• invexed