1. Able to or tending to combine
   - combinable, combinatory

See also: combinative, combinatory

• orthodontic treatment
• orthodontics
• orthodontist
• orthodonture
• orthodox
• Orthodox Catholic Church
• Orthodox Church
• Orthodox Jew
• Orthodox Judaism
• orthodox sleep
• orthodoxy
• orthoepist
• orthoepy
• orthogenesis
• orthogonal
• orthogonal opposition
• orthogonality
• orthogonally
• orthographic
• orthographical
• orthographically
• orthography
• orthology
• orthomolecular
• orthomorphic projection