1. Being up to particular standard or level especially in being up to date in knowledge
   "always au fait on the latest events"
   - abreast, au courant, up on, apace [N. Amer]

See also: informed

Encyclopedia: Au fait

• Eleocharis acicularis
• Eleocharis dulcis
• Eleocharis palustris
• Eleonora Duse
• eleostearic acid
• Eleotridae
• elephant
• elephant bird
• elephant ear
• elephant grass
• elephant seal
• elephant tree
• elephant yam
• elephant's ear
• elephant's-foot
• elephant-tusk
• elephantiasis
• elephantiasis neuromatosa
• elephantiasis scroti
• Elephantidae
• elephantine
• Elephantopus
• Elephas
• Elephas maximus
• Elettaria