full-bore in English dictionary full-bore Meanings and definitions of "full-bore" Denoting a firearm of relatively large caliber. Thoroughgoing; complete; total. At top speed; with full power. adjective Thoroughgoing; complete; total. adjective (of a firearm) Having a relatively large caliber. adverb At top speed; with full power. more Grammar and declension of full-bore full-bore ( not comparable) full-bore (not comparable) more Sample sentences with "full-bore" Declension Stem Try again Available translations Cornish Polish Authors