noun
main entry (in dictionary)
Used in lexicography to refer to the primary entry under which sub-entries are listed. Contrasts with 子項目 (sub-entry).
この辞書では、親項目の下に子項目が並んでいる。
In this dictionary, sub-entries are listed under the main entry.
Compound of 親 (parent, main) and 項目 (item, entry). The exact historical derivation is uncertain; the term is used in modern lexicography.