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[luk '^p] = /lʊk ˈʌp/
  1. When you look up a word in a dictionary, you find it and read about it.
    If you don’t know this word, you have to look it up, because I won’t tell you what it means.
    People who often use dictionaries can look up words very quickly.
    When I asked my teacher what “tintinnabulation” means, he told me to look it up.