lexicography

/ˌlɛksɪˈkɑɡrəfi/
noun
  1. The practice or profession of writing and compiling dictionaries.
    • Modern lexicography uses large databases of real language to decide which words to include.
    • The history of English lexicography includes famous names like Samuel Johnson and Noah Webster.
    • She studied lexicography in graduate school and now works for a major dictionary publisher.