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

• original
• original equipment manufacturer
• original equipment manufacturers
• originalities
• originality
• originally
• originals
• original sin
• originate
• originated
• originates
• originating
• originating application
• originating summons
• origination
• originations
• originative
• originator
• originators
• origins
• orillion
• orillions
• Orimulsion
• O-ring
• oriole