growing old together

conjunctive form of 誓う (chikau) [godan]

together, with

combination; a state which is combined / meeting

combined, merged, unified

an oath, pledge / (Shinto, Buddhism) vow that the Buddha pledged to save sentient beings

to swear, to pledge, to make an oath, to vow

to stand, to place in an upright position / to release something physical but not solid or liquid / (Internet slang) to start (a thread)

(chiefly women's speech) first person singular pronoun: I, me

old age, an elderly person, the aged, the elderly