VERTEX
Meaning of VERTEX in English
noun
Synonyms: top 1, apex, crest, crown, fastigium, peak, roof, summit
Related Word: cap; tip-top; apogee, zenith
Idioms: upper extremity
Merriam Webster.
Collegiate thesaurus English vocabulary.
Английский энциклопедический словарь тезаурус.
2003