noun (common) (futsuumeishi) host and guest

noun (common) (futsuumeishi) the principal and the auxiliary;the principal and the subsidiary;the primary and the subordinate

noun (common) (futsuumeishi) philosophy subject and object

noun (common) (futsuumeishi) grammar subject and object

noun (common) (futsuumeishi)noun or participle which takes the aux. verb suru yojijukugo reversing the order of (relative) importance (of);putting the cart before the horse;the tables being turned;mistaking the insignificant for the essential;mistaking the means for the end