Norwegian Constitution Day is the National Day of Norway and is an official national holiday observed on May 17 each year. Among Norwegians, the day is referred to simply as syttende mai (meaning May Seventeenth), Nasjonaldagen (The National Day) or Grunnlovsdagen (The Constitution Day), although the latter is less frequent.
observe [əbˈzɜːv] соблюдать, наблюдать, следить
among [əˈmʌŋ] между, посреди,
refer [rɪˈfɜː] относится, перенаправлять
latter [ˈlætə] недавний, более поздний