1. Coming next after the third and just before the fifth in position or time or degree or magnitude
   - fourth, quaternary

See also: ordinal

Encyclopedia: 4th

• featherbed
• featherbedding
• featherbrained
• feathered
• featheredge
• featheredged
• featherfoil
• featheriness
• feathering
• featherless
• featherlike
• feathertop
• feathertop grass
• featherweight
• feathery
• feature
• feature article
• feature film
• feature of speech
• featured
• featureless
• Feb
• Feb 2
• febricity
• febrifuge