noun

• (uncountable) A system for sending messages and datas by means of computers connected together in a network.
  "He sent me his details via email."
• (uncountable) The quantity of messages sent through an email system.
  "I am searching through my old email."
• (countable) A message being sent through email.
  "He sent me an email last week to remind me about the meeting."
• (countable, informal) An email address.
  "What’s your email?"

verb

• (transitive) To send an email or emails to.
  "She emailed me last week, asking about the status of the project."
• (transitive, ditransitive) To send (data) through email.
  "I’ll email you the link."
• (intransitive) To send, or compose and then send, one or more emails.
  "Most teenagers seem to spend almost the whole day emailing and surfing the Web."

noun

• (obsolete, rare) Enamel (“an opaque, glossy coating”).
  "Set Naples courser to an asse, / Fine emerawde vnto greene glasse: / Set rich rubye to redd emayle, / The raven's plume to peacocke's tayle: / [...] / There shall no less an oddes be seene, / In myne from everye other Queene!"