1. Heartily friendly and congenial
   - hail-fellow, hail-fellow-well-met

See also: comrade, comradeliness, friendly

• diastole
• diastolic
• diastolic pressure
• diastrophism
• diatessaron
• diathermy
• diathermy machine
• diathesis
• diatom
• diatomaceous earth
• diatomic
• diatomite
• Diatomophyceae
• diatonic
• diatonic scale
• diatribe
• Diaz
• diazepam
• diazo
• diazonium
• diazotise
• diazotize
• diazoxide
• dibasic
• dibasic acid