What is the meaning of normal?

noun

• Something regarded as a normative example.
  • usage: "the convention of not naming the main character"; "violence is the rule not the exception"; "his formula for impressing visitors"
  • synonyms: convention, pattern, rule, formula

adjective

• Conforming with or constituting a norm or standard or level or type or social norm; not abnormal.
  • usage: "serve wine at normal room temperature"; "normal diplomatic relations"; "normal working hours"; "normal word order"; "normal curiosity"; "the normal course of events"
• In accordance with scientific laws.
• Being approximately average or within certain limits in e. G. Intelligence and development.
  • usage: "a perfectly normal child"; "of normal intelligence"; "the most normal person I've ever met"
• Forming a right angle. .