1. Having seven units or components
   - septuple, seven-fold

1. Seven times
   "the population of this village increased sevenfold in the past 100 years"

See also: multiple

• blue mold fungus
• blue moon
• blue mould fungus
• Blue Mountain tea
• blue murder
• Blue Nile
• blue note
• blue orchid
• blue pea
• blue peafowl
• blue peter
• blue pickerel
• blue pike
• blue pikeperch
• blue pimpernel
• blue point Siamese
• blue pointed
• blue poppy
• blue racer
• blue riband
• blue ribbon commission
• blue ribbon committee
• blue ribbon jury
• Blue Ridge
• Blue Ridge Mountains