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

• fibrocartilaginous
• fibrocystic breast disease
• fibrocystic disease of the breast
• fibrocystic disease of the pancreas
• fibroid
• fibroid tumor
• fibroid tumour
• fibroin
• fibroma
• fibromyalgia
• fibromyositis
• fibrosis
• fibrositis
• fibrosity
• fibrous
• fibrous astrocyte
• fibrous dysplasia of bone
• fibrous joint
• fibrous tissue
• fibrous-rooted begonia
• fibrousness
• fibrovascular bundle
• fibula
• fibular
• fibular vein