[ないか, naika](n, adj-no) (1) internal medicine, i.e. treatment by medical procedures rather than surgical procedures; (2) department of internal medicine (hospital, etc.); (P)#6319[Add to Longdo]
[おあいそ;おあいそう, oaiso ; oaisou](n) (1) (pol) (See 愛想) compliment; flattery; (2) service; hospitality; (3) bill (at a restaurant; formerly, not used by customers); check[Add to Longdo]