回文: palindrome

改善: to improve

scallop mantle (as a food)

偕老: growing old together / 貝楼: / 回廊, 廻廊: corridor; cloister / 戒﨟, 戒臘: / 海老: lobster, prawn, shrimp / 海楼: / 皆労:

改造: to reorganize; to revamp; to remodel / 晦蔵: to hide one's talents

解像: resolution, as of a display screen or image / 改造: reorganization; revamping; remodeling / 晦蔵: a hidden talent; an undeveloped resource, a reserve

鹿猪: babirusa

介病: nursing a patient / 怪猫: a monster cat / 海錨: sea anchor

海軍: (military) navy

会議: have a meeting / 懐疑: to doubt / 回議: consult with a circular