ruby

Từ điển Oxford Advanced Learner 8th

▪ I. ruby [ruby rubies rubied rubying] BrE [ˈruːbi] NAmE [ˈruːbi] noun (pl. rubies)
1. countable a dark red ↑precious stone
•a ruby ring
2. uncountable a dark red colour

Word Origin:
Middle English: from Old French rubi, from medieval Latin rubinus, from the base of Latin rubeus ‘red’.
 
▪ II. ruby adjective
•ruby lips
Main entry: ↑ruby_derived

• Từ đồng nghĩa / Synonyms:
  crimson, deep red