WH-WORD
Meaning of WH-WORD in English
/ ˌdʌbljuː ˈeɪtʃ wɜːd; NAmE wɜːrd/ noun
( grammar ) a word such as 'why', 'where', 'when', 'what', 'why' or 'how'
Oxford Advanced Learner's English Dictionary.
Оксфордский английский словарь для изучающик язык на продвинутом уровне.
2005