1. In contact with, on top of
   "the book upon the table"
   - on

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

See also: informed

Encyclopedia: Upon

• Meade
• meadow
• meadow beauty
• meadow bright
• meadow buttercup
• meadow clary
• meadow cranesbill
• meadow cress
• meadow fern
• meadow fescue
• meadow foxtail
• meadow goldenrod
• meadow jumping mouse
• meadow leek
• meadow lily
• meadow mouse
• meadow mushroom
• meadow pea
• meadow pipit
• meadow rue
• meadow saffron
• meadow salsify
• meadow saxifrage
• meadow spikemoss
• meadow spittlebug