1. Making trouble just for the fun of it
   - raising hell

Type of: aggression

• Arctostaphylos alpina
• Arctostaphylos andersonii
• Arctostaphylos manzanita
• Arctostaphylos tomentosa
• Arctostaphylos uva-ursi
• Arctotis
• Arctotis stoechadifolia
• Arctotis venusta
• Arcturus
• arcuate
• arcuate artery
• arcuate artery of the kidney
• arcuate vein of the kidney
• arcus
• arcus senilis
• arcus zygomaticus
• ARDA
• Ardea
• Ardea herodius
• Ardea occidentalis
• ardeb
• Ardeidae
• ardency
• Ardennes
• Ardennes counteroffensive