老年学: gerontology

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:

老犬: old dog / 老健: / 陋見:

労務者: a laborer; a forced laborer

(slang, derogatory) A vague, derogatory label applied to stories that have overdone, clichéd elements. Usually an isekai story with elements like those described at 異世界#Usage notes.

art

hiroi ago: broad chin (archaic) / ōkii: big

some, several

how many, how much / some, several, having an indefinite number or quantity / some, many, having a considerable number

ignorant of / misgivings / interrupt, stop