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

• environmentalism
• environmentalist
• environmentally
• environmentally-friendly
• environs
• envisage
• envision
• envisioned
• envisioning
• envoi
• envoy
• envoy extraordinary
• envy
• enwrap
• enwrapped
• Enzed
• enzootic
• enzymatic
• enzyme
• enzyme-linked-immunosorbent serologic assay
• enzymic
• enzymologist
• enzymology
• Eocene
• Eocene epoch