1. Naughtily or annoyingly playful
   - arch, impish, implike, mischievous, pixilated, puckish, wicked, pixillated

See also: playful, prankishness

• Fourth Earl of Chesterfield
• Fourth Earl of Orford
• fourth estate
• Fourth Lateran Council
• Fourth of July
• fourth part
• fourth power
• fourth stomach
• fourth ventricle
• fourth-year
• fourthly
• fovea
• fovea centralis
• foveal vision
• fowl
• fowl cholera
• fowl pest
• fowl run
• fowler
• fowling piece
• fox
• fox grape
• fox hunter
• fox hunting
• Fox River