1. Having or displaying all the characteristics necessary for completeness
   - full-blown 
2. Denoting a firearm of relatively large calibre

1. At top speed; with full power

See also: complete

• big hand
• big league
• big leaguer
• big marigold
• big money
• big sagebrush
• big science
• big shagbark
• big shellbark
• big shellbark hickory
• big shot
• Big Sioux River
• big sister
• big spender
• big stick
• Big Sur
• big time
• big toe
• big top
• big tree
• big wheel
• big-bang theory
• big-bellied
• big-boned
• big-bud hickory