Word: headword
Part of speech: Noun
Syllables: head
word
Definition: A word used as the title of a section, particularly in a dictionary, encyclopedia, or thesaurus.
Morphemes:
Affix: head
Language: en
PoS: Noun
Meaning: Short for headline
Affix: word
Language: en
PoS: Noun
Meaning: Something like such a unit of language.