Meaning of VERTICAL in English

VERTICAL

adjective

situated at right angles to the plane of the horizon or extending from that plane at such an angle

vertical walls

Synonyms: perpendicular, plumb, straight-up

Related Word: erect, upright; steep, up-and-down

Contrasted words: flat, plane

Antonyms: horizontal

Merriam Webster. Collegiate thesaurus English vocabulary.      Английский энциклопедический словарь тезаурус.