1. Without official authorization
   "he had made some money on the side"
   - unofficially

Encyclopedia: On the side

• teraphim
• teras
• teratogen
• teratogenesis
• teratogenic
• teratoid
• teratology
• teratoma
• terazosin
• terbinafine
• terbium
• terbium metal
• terce
• tercel
• tercelet
• tercentenary
• tercentennial
• tercet
• Terebella
• Terebellidae
• terebinth
• teredinid
• Teredinidae
• teredo
• terefah