" adjoin "

1: to be adjacent to;

  * e.g., " ... the bedroom of their apartment adjoins their neighbor's living room "

•  Synonyms : 

•  abut,

•  border (on),

•  butt (on or against),

•  flank,

•  fringe,

•  join,

•  march (with),

•  neighbor,

•  skirt,

•  touch,

•  verge (on)

•  Antonyms : 

•  abate,

•  bate,

•  deduct,

•  knock off,

•  remove,

•  subtract,

•  take off

2: to join (something) to a mass, quantity, or number so as to bring about an overall increase;

  * e.g., " ... after the dictionary writer's talk, the principal adjoined a few remarks about her own love of words "

•  Synonyms : 

•  add,

•  annex,

•  append,

•  subjoin,

•  tack (on)

•  Antonyms : 

• (N/A)