abreast 
/əˈbrɛst/ adverb
/əˈbrɛst/ adverb — used to describe two or more people or things that are next to each other in a line ▪ columns/rows of five men abreast = columns/rows of men five abreast ▪ with seats two abreast on each side of the aisle
abreast of 1 : next to (someone or something)
▪ Another runner drew abreast of her. [=drew alongside her] 2 : aware of or informed about (new occurrences, facts, etc.)
▪ She is always abreast of the latest political news. ▪ He likes to keep/stay abreast of the news.
▪ Another runner drew abreast of her. [=drew alongside her]
▪ She is always abreast of the latest political news. ▪ He likes to keep/stay abreast of the news.
